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30887714971812 = 22321701118610951
BaseRepresentation
bin1110000010111100110110…
…10001110110000010100100
311001100211120222000202012110
413001132123101312002210
513022031020013044222
6145405341555521020
76335364241221066
oct701363321660244
9131324528022173
1030887714971812
119929451951396
12356a2b52b9170
1314309119a85ba
1478ad8ad5b736
153886d8a3230c
hex1c179b4760a4

30887714971812 has 24 divisors (see below), whose sum is σ = 72074656648512. Its totient is φ = 10295430460000.

The previous prime is 30887714971811. The next prime is 30887714971879. The reversal of 30887714971812 is 21817941778803.

It is not an unprimeable number, because it can be changed into a prime (30887714971811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59045064 + ... + 59565887.

It is an arithmetic number, because the mean of its divisors is an integer number (3003110693688).

Almost surely, 230887714971812 is an apocalyptic number.

It is an amenable number.

30887714971812 is an abundant number, since it is smaller than the sum of its proper divisors (41186941676700).

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

30887714971812 is a wasteful number, since it uses less digits than its factorization.

30887714971812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118632659 (or 118632657 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 66.

The spelling of 30887714971812 in words is "thirty trillion, eight hundred eighty-seven billion, seven hundred fourteen million, nine hundred seventy-one thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 21701 43402 65103 86804 130206 260412 118610951 237221902 355832853 474443804 711665706 1423331412 2573976247651 5147952495302 7721928742953 10295904990604 15443857485906 30887714971812