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51030130445 = 5743912172729
BaseRepresentation
bin101111100001101000…
…011111111100001101
311212201101012012221022
4233201220133330031
51314002203133240
635235400443525
73454400644340
oct574150377415
9155641165838
1051030130445
111a7071a6328
129a81a795a5
134a732c9378
142681482457
1514da0289b5
hexbe1a1ff0d

51030130445 has 32 divisors (see below), whose sum is σ = 70226956800. Its totient is φ = 34870910976.

The previous prime is 51030130433. The next prime is 51030130559. The reversal of 51030130445 is 54403103015.

It is a cyclic number.

It is not a de Polignac number, because 51030130445 - 28 = 51030130189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18697841 + ... + 18700569.

It is an arithmetic number, because the mean of its divisors is an integer number (2194592400).

Almost surely, 251030130445 is an apocalyptic number.

It is an amenable number.

51030130445 is a deficient number, since it is larger than the sum of its proper divisors (19196826355).

51030130445 is a wasteful number, since it uses less digits than its factorization.

51030130445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 51030130445 in words is "fifty-one billion, thirty million, one hundred thirty thousand, four hundred forty-five".

Divisors: 1 5 7 35 439 1217 2195 2729 3073 6085 8519 13645 15365 19103 42595 95515 534263 1198031 2671315 3321193 3739841 5990155 8386217 16605965 18699205 23248351 41931085 116241755 1458003727 7290018635 10206026089 51030130445