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30131002021302 = 23372131751526597
BaseRepresentation
bin1101101100111011010111…
…01011000001010110110110
310221200111101100002221221000
412312131223223001112312
512422131243004140202
6144025554035104130
76226615214243400
oct666355353012666
9127614340087830
1030131002021302
119667539144666
12346770b742046
1313a7458aaaca0
147624c396bb70
15373b9aabc91c
hex1b676bac15b6

30131002021302 has 192 divisors, whose sum is σ = 88815366440640. Its totient is φ = 7479188462592.

The previous prime is 30131002021273. The next prime is 30131002021313. The reversal of 30131002021302 is 20312020013103.

30131002021302 is a `hidden beast` number, since 30 + 1 + 310 + 0 + 2 + 0 + 21 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25178533 + ... + 26348064.

It is an arithmetic number, because the mean of its divisors is an integer number (462580033545).

Almost surely, 230131002021302 is an apocalyptic number.

30131002021302 is an abundant number, since it is smaller than the sum of its proper divisors (58684364419338).

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

30131002021302 is a wasteful number, since it uses less digits than its factorization.

30131002021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51526652 (or 51526639 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30131002021302 its reverse (20312020013103), we get a palindrome (50443022034405).

The spelling of 30131002021302 in words is "thirty trillion, one hundred thirty-one billion, two million, twenty-one thousand, three hundred two".