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54570020379 = 3721112315509
BaseRepresentation
bin110010110100101000…
…000110111000011011
312012212002010021000220
4302310220012320123
51343224411123004
641022532531123
73641203343220
oct626450067033
9165762107026
1054570020379
1121163398aa6
12a6ab480aa3
1351b87c13b4
1428d9665947
151645bb4dd9
hexcb4a06e1b

54570020379 has 16 divisors (see below), whose sum is σ = 83548419840. Its totient is φ = 31035080160.

The previous prime is 54570020353. The next prime is 54570020411. The reversal of 54570020379 is 97302007545.

It is not a de Polignac number, because 54570020379 - 227 = 54435802651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54570020379.

It is not an unprimeable number, because it can be changed into a prime (54570020339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6153324 + ... + 6162185.

It is an arithmetic number, because the mean of its divisors is an integer number (5221776240).

Almost surely, 254570020379 is an apocalyptic number.

54570020379 is a deficient number, since it is larger than the sum of its proper divisors (28978399461).

54570020379 is a wasteful number, since it uses less digits than its factorization.

54570020379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315730.

The product of its (nonzero) digits is 264600, while the sum is 42.

The spelling of 54570020379 in words is "fifty-four billion, five hundred seventy million, twenty thousand, three hundred seventy-nine".

Divisors: 1 3 7 21 211 633 1477 4431 12315509 36946527 86208563 258625689 2598572399 7795717197 18190006793 54570020379