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3081960240 = 2435157263311
BaseRepresentation
bin1011011110110010…
…1111101100110000
321221210020210122120
42313230233230300
522302440211430
61225453034240
7136242141552
oct26754575460
97853223576
103081960240
111341760387
12720185980
133a167cc18
1421345d4d2
15130883610
hexb7b2fb30

3081960240 has 160 divisors (see below), whose sum is σ = 9682523136. Its totient is φ = 810900480.

The previous prime is 3081960197. The next prime is 3081960241. The reversal of 3081960240 is 420691803.

It is not an unprimeable number, because it can be changed into a prime (3081960241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9909685 + ... + 9909995.

Almost surely, 23081960240 is an apocalyptic number.

3081960240 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 3081960240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4841261568).

3081960240 is an abundant number, since it is smaller than the sum of its proper divisors (6600562896).

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

3081960240 is a wasteful number, since it uses less digits than its factorization.

3081960240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 3081960240 is about 55515.4054294842. The cubic root of 3081960240 is about 1455.2658693897.

The spelling of 3081960240 in words is "three billion, eighty-one million, nine hundred sixty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 157 240 263 311 314 471 526 622 628 785 789 933 942 1052 1244 1256 1315 1555 1570 1578 1866 1884 2104 2355 2488 2512 2630 3110 3140 3156 3732 3768 3945 4208 4665 4710 4976 5260 6220 6280 6312 7464 7536 7890 9330 9420 10520 12440 12560 12624 14928 15780 18660 18840 21040 24880 31560 37320 37680 41291 48827 63120 74640 81793 82582 97654 123873 146481 163586 165164 195308 206455 244135 245379 247746 292962 327172 330328 390616 408965 412910 488270 490758 495492 585924 619365 654344 660656 732405 781232 817930 825820 976540 981516 990984 1171848 1226895 1238730 1308688 1464810 1635860 1651640 1953080 1963032 1981968 2343696 2453790 2477460 2929620 3271720 3303280 3906160 3926064 4907580 4954920 5859240 6543440 9815160 9909840 11718480 12841501 19630320 25683002 38524503 51366004 64207505 77049006 102732008 128415010 154098012 192622515 205464016 256830020 308196024 385245030 513660040 616392048 770490060 1027320080 1540980120 3081960240