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31023020201356 = 22823127717234283
BaseRepresentation
bin1110000110111000111000…
…00110010101010110001100
311001211202211121200120121101
413003130130012111112030
513031240121132420411
6145551440112312444
76351224234543011
oct703343406252614
9131752747616541
1031023020201356
119980875153a47
123590576842724
1314405c5a1abc1
14793744c5d708
1538bea74e08c1
hex1c371c19558c

31023020201356 has 48 divisors (see below), whose sum is σ = 54443097886464. Its totient is φ = 15467933549376.

The previous prime is 31023020201297. The next prime is 31023020201357. The reversal of 31023020201356 is 65310202032013.

It is not an unprimeable number, because it can be changed into a prime (31023020201357) 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, 7243289991 + ... + 7243294273.

It is an arithmetic number, because the mean of its divisors is an integer number (1134231205968).

Almost surely, 231023020201356 is an apocalyptic number.

It is an amenable number.

31023020201356 is a deficient number, since it is larger than the sum of its proper divisors (23420077685108).

31023020201356 is a wasteful number, since it uses less digits than its factorization.

31023020201356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8110 (or 8108 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 31023020201356 its reverse (65310202032013), we get a palindrome (96333222233369).

The spelling of 31023020201356 in words is "thirty-one trillion, twenty-three billion, twenty million, two hundred one thousand, three hundred fifty-six".

Divisors: 1 2 4 823 1277 1646 1723 2554 3292 3446 4283 5108 6892 8566 17132 1050971 1418029 2101942 2200271 2836058 3524909 4203884 4400542 5469391 5672116 7049818 7379609 8801084 10938782 14099636 14759218 21877564 29518436 1810823033 3621646066 4501308793 6073418207 7243292132 9002617586 9423760693 12146836414 18005235172 18847521386 24293672828 37695042772 7755755050339 15511510100678 31023020201356