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3103131012 = 223733542387
BaseRepresentation
bin1011100011110110…
…0000010110000100
322000021002101111020
42320331200112010
522323400143022
61231530511140
7136620115122
oct27075402604
98007071436
103103131012
111352700293
127272954b0
133a5b831c7
142161b0912
1513266635c
hexb8f60584

3103131012 has 24 divisors (see below), whose sum is σ = 7339827936. Its totient is φ = 1020207168.

The previous prime is 3103130999. The next prime is 3103131029. The reversal of 3103131012 is 2101313013.

It is a super-2 number, since 2×31031310122 = 19258844155272288288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3103130982 and 3103131000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770318 + ... + 1772069.

It is an arithmetic number, because the mean of its divisors is an integer number (305826164).

Almost surely, 23103131012 is an apocalyptic number.

It is an amenable number.

3103131012 is an abundant number, since it is smaller than the sum of its proper divisors (4236696924).

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

3103131012 is a wasteful number, since it uses less digits than its factorization.

3103131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542467 (or 3542465 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3103131012 is about 55705.7538500288. The cubic root of 3103131012 is about 1458.5904661098.

Adding to 3103131012 its reverse (2101313013), we get a palindrome (5204444025).

The spelling of 3103131012 in words is "three billion, one hundred three million, one hundred thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 3542387 7084774 10627161 14169548 21254322 42508644 258594251 517188502 775782753 1034377004 1551565506 3103131012