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54569814969 = 318189938323
BaseRepresentation
bin110010110100100111…
…010100101110111001
312012212001201211021010
4302310213110232321
51343224333034334
641022524304133
73641201526315
oct626447245671
9165761654233
1054569814969
112116326873a
12a6ab3a2049
1351b874ba57
1428d9610b45
151645b740e9
hexcb49d4bb9

54569814969 has 4 divisors (see below), whose sum is σ = 72759753296. Its totient is φ = 36379876644.

The previous prime is 54569814947. The next prime is 54569814979. The reversal of 54569814969 is 96941896545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 54569814969 - 220 = 54568766393 is a prime.

It is a super-2 number, since 2×545698149692 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54569814979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9094969159 + ... + 9094969164.

It is an arithmetic number, because the mean of its divisors is an integer number (18189938324).

Almost surely, 254569814969 is an apocalyptic number.

It is an amenable number.

54569814969 is a deficient number, since it is larger than the sum of its proper divisors (18189938327).

54569814969 is a wasteful number, since it uses less digits than its factorization.

54569814969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18189938326.

The product of its digits is 83980800, while the sum is 66.

The spelling of 54569814969 in words is "fifty-four billion, five hundred sixty-nine million, eight hundred fourteen thousand, nine hundred sixty-nine".

Divisors: 1 3 18189938323 54569814969