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3080131020 = 22325234491657
BaseRepresentation
bin1011011110010111…
…0001000111001100
321221122210212102200
42313211301013030
522302003143040
61225345521500
7136220452551
oct26745610714
97848725380
103080131020
11134072102a
1271b643290
133a118c445
14213104a28
15130621630
hexb79711cc

3080131020 has 144 divisors (see below), whose sum is σ = 9776894400. Its totient is φ = 783433728.

The previous prime is 3080131013. The next prime is 3080131037. The reversal of 3080131020 is 201310803.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3080130984 and 3080131002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1858032 + ... + 1859688.

It is an arithmetic number, because the mean of its divisors is an integer number (67895100).

Almost surely, 23080131020 is an apocalyptic number.

3080131020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3080131020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4888447200).

3080131020 is an abundant number, since it is smaller than the sum of its proper divisors (6696763380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3080131020 is a wasteful number, since it uses less digits than its factorization.

3080131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3080131020 is about 55498.9280977570. The cubic root of 3080131020 is about 1454.9779002560.

Adding to 3080131020 its reverse (201310803), we get a palindrome (3281441823).

The spelling of 3080131020 in words is "three billion, eighty million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 138 180 207 230 276 345 414 449 460 690 828 898 1035 1347 1380 1657 1796 2070 2245 2694 3314 4041 4140 4490 4971 5388 6628 6735 8082 8285 8980 9942 10327 13470 14913 16164 16570 19884 20205 20654 24855 26940 29826 30981 33140 38111 40410 41308 49710 51635 59652 61962 74565 76222 80820 92943 99420 103270 114333 123924 149130 152444 154905 185886 190555 206540 228666 298260 309810 342999 371772 381110 457332 464715 571665 619620 685998 743993 762220 929430 1143330 1371996 1487986 1714995 1858860 2231979 2286660 2975972 3429990 3719965 4463958 6695937 6859980 7439930 8927916 11159895 13391874 14879860 17111839 22319790 26783748 33479685 34223678 44639580 51335517 66959370 68447356 85559195 102671034 133918740 154006551 171118390 205342068 256677585 308013102 342236780 513355170 616026204 770032755 1026710340 1540065510 3080131020