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31020423323 = 49967019277
BaseRepresentation
bin11100111000111101…
…100001100010011011
32222001212101210000112
4130320331201202123
51002012212021243
622130043154535
72145500150651
oct347075414233
988055353015
1031020423323
111217924719a
126018815a4b
132c04903296
141703b90dd1
15c184e1818
hex738f6189b

31020423323 has 8 divisors (see below), whose sum is σ = 31090578000. Its totient is φ = 30950301600.

The previous prime is 31020423319. The next prime is 31020423353. The reversal of 31020423323 is 32332402013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31020423323 - 22 = 31020423319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31020423353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3339161 + ... + 3348437.

It is an arithmetic number, because the mean of its divisors is an integer number (3886322250).

Almost surely, 231020423323 is an apocalyptic number.

31020423323 is a deficient number, since it is larger than the sum of its proper divisors (70154677).

31020423323 is an equidigital number, since it uses as much as digits as its factorization.

31020423323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16477.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31020423323 its reverse (32332402013), we get a palindrome (63352825336).

The spelling of 31020423323 in words is "thirty-one billion, twenty million, four hundred twenty-three thousand, three hundred twenty-three".

Divisors: 1 499 6701 9277 3343799 4629223 62165177 31020423323