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312323303112 = 233131138171933
BaseRepresentation
bin1001000101101111110…
…10110110011011001000
31002212011100101200120220
410202313322312123020
520104114231144422
6355251312150040
731364443162632
oct4426772663310
91085140350526
10312323303112
111105013a9327
1250644538320
13235b4c5cc42
141118ba7ba52
1581ce4e2e5c
hex48b7eb66c8

312323303112 has 64 divisors (see below), whose sum is σ = 787349280960. Its totient is φ = 103236806400.

The previous prime is 312323303111. The next prime is 312323303143. The reversal of 312323303112 is 211303323213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (312323303111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305898 + ... + 4377830.

It is an arithmetic number, because the mean of its divisors is an integer number (12302332515).

Almost surely, 2312323303112 is an apocalyptic number.

It is an amenable number.

312323303112 is an abundant number, since it is smaller than the sum of its proper divisors (475025977848).

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

312323303112 is a wasteful number, since it uses less digits than its factorization.

312323303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73454 (or 73450 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 312323303112 its reverse (211303323213), we get a palindrome (523626626325).

The spelling of 312323303112 in words is "three hundred twelve billion, three hundred twenty-three million, three hundred three thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 131 262 393 524 786 1048 1381 1572 2762 3144 4143 5524 8286 11048 16572 33144 71933 143866 180911 215799 287732 361822 431598 542733 575464 723644 863196 1085466 1447288 1726392 2170932 4341864 9423223 18846446 28269669 37692892 56539338 75385784 99339473 113078676 198678946 226157352 298018419 397357892 596036838 794715784 1192073676 2384147352 13013470963 26026941926 39040412889 52053883852 78080825778 104107767704 156161651556 312323303112