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313151033312 = 25131210162207
BaseRepresentation
bin1001000111010010100…
…00011000111111100000
31002221022000220201221222
410203221100120333200
520112313131031222
6355505401234212
731424113602335
oct4435120307740
91087260821858
10313151033312
1111089665a277
1250835792968
13236b75a1920
141122998498c
15822bee6542
hex48e9418fe0

313151033312 has 48 divisors (see below), whose sum is σ = 664005952512. Its totient is φ = 144516979200.

The previous prime is 313151033281. The next prime is 313151033341. The reversal of 313151033312 is 213330151313.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5002913 + ... + 5065119.

It is an arithmetic number, because the mean of its divisors is an integer number (13833457344).

Almost surely, 2313151033312 is an apocalyptic number.

313151033312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

313151033312 is an abundant number, since it is smaller than the sum of its proper divisors (350854919200).

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

313151033312 is a wasteful number, since it uses less digits than its factorization.

313151033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74331 (or 74323 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 26.

Adding to 313151033312 its reverse (213330151313), we get a palindrome (526481184625).

The spelling of 313151033312 in words is "three hundred thirteen billion, one hundred fifty-one million, thirty-three thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 12101 24202 48404 62207 96808 124414 157313 193616 248828 314626 387232 497656 629252 808691 995312 1258504 1617382 1990624 2517008 3234764 5034016 6469528 12939056 25878112 752766907 1505533814 3011067628 6022135256 9785969791 12044270512 19571939582 24088541024 39143879164 78287758328 156575516656 313151033312