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61582688054 = 2172106544443
BaseRepresentation
bin111001010110100111…
…010011111100110110
312212221210200200121022
4321112213103330312
52002110132004204
644142442421142
74310035132406
oct712647237466
9185853620538
1061582688054
1124131905018
12bb27b017b2
135a656111b4
142da2b5c806
1519066825be
hexe569d3f36

61582688054 has 12 divisors (see below), whose sum is σ = 98127432924. Its totient is φ = 28980088224.

The previous prime is 61582688053. The next prime is 61582688059. The reversal of 61582688054 is 45088628516.

It is a junction number, because it is equal to n+sod(n) for n = 61582687987 and 61582688005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61582688053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53271644 + ... + 53272799.

It is an arithmetic number, because the mean of its divisors is an integer number (8177286077).

Almost surely, 261582688054 is an apocalyptic number.

61582688054 is a deficient number, since it is larger than the sum of its proper divisors (36544744870).

61582688054 is a wasteful number, since it uses less digits than its factorization.

61582688054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106544479 (or 106544462 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 61582688054 in words is "sixty-one billion, five hundred eighty-two million, six hundred eighty-eight thousand, fifty-four".

Divisors: 1 2 17 34 289 578 106544443 213088886 1811255531 3622511062 30791344027 61582688054