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54372985165 = 579191720697
BaseRepresentation
bin110010101000111000…
…011110100101001101
312012100100100211112101
4302220320132211031
51342323441011130
640551213435101
73633261514432
oct625070364515
9165310324471
1054372985165
1121072150584
12a65549ba91
135186a34705
1428bb415b89
1516337441ca
hexca8e1e94d

54372985165 has 16 divisors (see below), whose sum is σ = 66419527680. Its totient is φ = 42722858880.

The previous prime is 54372985151. The next prime is 54372985169. The reversal of 54372985165 is 56158927345.

54372985165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54372985165 - 211 = 54372983117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54372985169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284904 + ... + 435793.

It is an arithmetic number, because the mean of its divisors is an integer number (4151220480).

Almost surely, 254372985165 is an apocalyptic number.

It is an amenable number.

54372985165 is a deficient number, since it is larger than the sum of its proper divisors (12046542515).

54372985165 is a wasteful number, since it uses less digits than its factorization.

54372985165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720972.

The product of its digits is 9072000, while the sum is 55.

The spelling of 54372985165 in words is "fifty-four billion, three hundred seventy-two million, nine hundred eighty-five thousand, one hundred sixty-five".

Divisors: 1 5 79 191 395 955 15089 75445 720697 3603485 56935063 137653127 284675315 688265635 10874597033 54372985165