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31210030003012 = 22722743111392867
BaseRepresentation
bin1110001100010101001101…
…10000000111001101000100
311002111122112122121210222121
413012022212300013031010
513042321120140044022
6150213405001335324
76400564431614440
oct706124660071504
9132448478553877
1031210030003012
119a43110324933
123600867a97544
1314551299ba883
1479c805a07820
15391ca02ec2c7
hex1c62a6c07344

31210030003012 has 48 divisors (see below), whose sum is σ = 62840507885568. Its totient is φ = 13285904614560.

The previous prime is 31210030002979. The next prime is 31210030003021. The reversal of 31210030003012 is 21030003001213.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2956998 + ... + 8435869.

It is an arithmetic number, because the mean of its divisors is an integer number (1309177247616).

Almost surely, 231210030003012 is an apocalyptic number.

It is an amenable number.

31210030003012 is an abundant number, since it is smaller than the sum of its proper divisors (31630477882556).

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

31210030003012 is a wasteful number, since it uses less digits than its factorization.

31210030003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11393536 (or 11393534 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31210030003012 its reverse (21030003001213), we get a palindrome (52240033004225).

The spelling of 31210030003012 in words is "thirty-one trillion, two hundred ten billion, thirty million, three thousand, twelve".

Divisors: 1 2 4 7 14 28 227 431 454 862 908 1589 1724 3017 3178 6034 6356 12068 97837 195674 391348 684859 1369718 2739436 11392867 22785734 45571468 79750069 159500138 319000276 2586180809 4910325677 5172361618 9820651354 10344723236 18103265663 19641302708 34372279739 36206531326 68744559478 72413062652 137489118956 1114643928679 2229287857358 4458575714716 7802507500753 15605015001506 31210030003012