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31368230156 = 227842057539
BaseRepresentation
bin11101001101101100…
…010011010100001100
32222222002212012022002
4131031230103110030
51003220231331111
622224350011432
72160222362024
oct351554232414
988862765262
1031368230156
111233760365a
1260b51a6b78
132c5b99c143
14173804aa84
15c38ce563b
hex74db1350c

31368230156 has 6 divisors (see below), whose sum is σ = 54894402780. Its totient is φ = 15684115076.

The previous prime is 31368230087. The next prime is 31368230197. The reversal of 31368230156 is 65103286313.

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 as a sum of consecutive naturals, namely, 3921028766 + ... + 3921028773.

It is an arithmetic number, because the mean of its divisors is an integer number (9149067130).

Almost surely, 231368230156 is an apocalyptic number.

It is an amenable number.

31368230156 is a deficient number, since it is larger than the sum of its proper divisors (23526172624).

31368230156 is a wasteful number, since it uses less digits than its factorization.

31368230156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7842057543 (or 7842057541 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 31368230156 in words is "thirty-one billion, three hundred sixty-eight million, two hundred thirty thousand, one hundred fifty-six".

Divisors: 1 2 4 7842057539 15684115078 31368230156