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3100103020 = 22571131271543
BaseRepresentation
bin1011100011000111…
…1101000101101100
322000001101112212101
42320301331011230
522322111244040
61231341544444
7136552304140
oct27061750554
98001345771
103100103020
111350a22313
12726275124
133a5362bb1
14215a23220
1513226909a
hexb8c7d16c

3100103020 has 96 divisors (see below), whose sum is σ = 7570096128. Its totient is φ = 1044513792.

The previous prime is 3100102991. The next prime is 3100103057. The reversal of 3100103020 is 203010013.

It is a super-2 number, since 2×31001030202 = 19221277469226240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 3100102988 and 3100103006.

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 31 ways as a sum of consecutive naturals, for example, 2008369 + ... + 2009911.

It is an arithmetic number, because the mean of its divisors is an integer number (78855168).

Almost surely, 23100103020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3100103020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3785048064).

3100103020 is an abundant number, since it is smaller than the sum of its proper divisors (4469993108).

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

3100103020 is a wasteful number, since it uses less digits than its factorization.

3100103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 3100103020 is about 55678.5687675249. The cubic root of 3100103020 is about 1458.1158876300.

Adding to 3100103020 its reverse (203010013), we get a palindrome (3303113033).

The spelling of 3100103020 in words is "three billion, one hundred million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 113 127 140 226 254 452 508 565 635 791 889 1130 1270 1543 1582 1778 2260 2540 3086 3164 3556 3955 4445 6172 7715 7910 8890 10801 14351 15430 15820 17780 21602 28702 30860 43204 54005 57404 71755 100457 108010 143510 174359 195961 200914 216020 287020 348718 391922 401828 502285 697436 783844 871795 979805 1004570 1220513 1371727 1743590 1959610 2009140 2441026 2743454 3487180 3919220 4882052 5486908 6102565 6858635 12205130 13717270 22143593 24410260 27434540 44287186 88574372 110717965 155005151 221435930 310010302 442871860 620020604 775025755 1550051510 3100103020