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52637389 = 717631701
BaseRepresentation
bin1100100011001…
…0111011001101
310200001020220221
43020302323031
5101433344024
65120111341
71206260530
oct310627315
9120036827
1052637389
1127792282
1215765551
13ab9c9ac
146dc2a17
15494b3e4
hex3232ecd

52637389 has 16 divisors (see below), whose sum is σ = 63887616. Its totient is φ = 42336000.

The previous prime is 52637371. The next prime is 52637393. The reversal of 52637389 is 98373625.

It is not a de Polignac number, because 52637389 - 213 = 52629197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52637329) 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, 74739 + ... + 75439.

It is an arithmetic number, because the mean of its divisors is an integer number (3992976).

Almost surely, 252637389 is an apocalyptic number.

It is an amenable number.

52637389 is a deficient number, since it is larger than the sum of its proper divisors (11250227).

52637389 is a wasteful number, since it uses less digits than its factorization.

52637389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its digits is 272160, while the sum is 43.

The square root of 52637389 is about 7255.1629202934. The cubic root of 52637389 is about 374.7699661800.

The spelling of 52637389 in words is "fifty-two million, six hundred thirty-seven thousand, three hundred eighty-nine".

Divisors: 1 7 17 119 631 701 4417 4907 10727 11917 75089 83419 442331 3096317 7519627 52637389