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2157663000754 = 219202927984527
BaseRepresentation
bin11111011001011110101…
…111001001100010110010
321122021022020121010200101
4133121132233021202302
5240322343212011004
64331114450143014
7311612620620262
oct37313657114262
97567266533611
102157663000754
11762072571908
122aa204b81a6a
1312860b5a30b1
1476607c637a2
153b1d46daba4
hex1f65ebc98b2

2157663000754 has 16 divisors (see below), whose sum is σ = 3408515510400. Its totient is φ = 1021547137104.

The previous prime is 2157663000749. The next prime is 2157663000761. The reversal of 2157663000754 is 4570003667512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13915162 + ... + 14069365.

It is an arithmetic number, because the mean of its divisors is an integer number (213032219400).

Almost surely, 22157663000754 is an apocalyptic number.

2157663000754 is a deficient number, since it is larger than the sum of its proper divisors (1250852509646).

2157663000754 is a wasteful number, since it uses less digits than its factorization.

2157663000754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27986577.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 2157663000754 in words is "two trillion, one hundred fifty-seven billion, six hundred sixty-three million, seven hundred fifty-four", and thus it is an aban number.

Divisors: 1 2 19 38 2029 4058 38551 77102 27984527 55969054 531706013 1063412026 56780605283 113561210566 1078831500377 2157663000754