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30131212311120 = 2435125546717963
BaseRepresentation
bin1101101100111011110000…
…01101001101101001010000
310221200111220222210210022210
412312131320031031221100
512422132210322423440
6144030030550232120
76226623346545264
oct666357015155120
9127614828723283
1030131212311120
1196676369154a8
12346776a055640
1313a7490528a2b
1476250386c0a4
15373bae2aaa80
hex1b677834da50

30131212311120 has 40 divisors (see below), whose sum is σ = 93406758165216. Its totient is φ = 8034989949568.

The previous prime is 30131212311107. The next prime is 30131212311131. The reversal of 30131212311120 is 2111321213103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62773358742 + ... + 62773359221.

Almost surely, 230131212311120 is an apocalyptic number.

30131212311120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30131212311120 is an abundant number, since it is smaller than the sum of its proper divisors (63275545854096).

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

30131212311120 is a wasteful number, since it uses less digits than its factorization.

30131212311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125546717979 (or 125546717973 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 30131212311120 its reverse (2111321213103), we get a palindrome (32242533524223).

The spelling of 30131212311120 in words is "thirty trillion, one hundred thirty-one billion, two hundred twelve million, three hundred eleven thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 125546717963 251093435926 376640153889 502186871852 627733589815 753280307778 1004373743704 1255467179630 1506560615556 1883200769445 2008747487408 2510934359260 3013121231112 3766401538890 5021868718520 6026242462224 7532803077780 10043737437040 15065606155560 30131212311120