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57616938 = 2323200941
BaseRepresentation
bin1101101111001…
…0101000101010
311000102020120200
43123302220222
5104222220223
65414533030
71266510261
oct333625052
9130366520
1057616938
112a583505
1217367176
13bc24382
14791b5d8
1550d1a43
hex36f2a2a

57616938 has 12 divisors (see below), whose sum is σ = 124836738. Its totient is φ = 19205640.

The previous prime is 57616907. The next prime is 57616943. The reversal of 57616938 is 83961675.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34892649 + 22724289 = 5907^2 + 4767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57616893 and 57616902.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1600453 + ... + 1600488.

Almost surely, 257616938 is an apocalyptic number.

57616938 is an abundant number, since it is smaller than the sum of its proper divisors (67219800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57616938 is a wasteful number, since it uses less digits than its factorization.

57616938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200949 (or 3200946 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 57616938 is about 7590.5821911102. The cubic root of 57616938 is about 386.2336053619.

The spelling of 57616938 in words is "fifty-seven million, six hundred sixteen thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 18 3200941 6401882 9602823 19205646 28808469 57616938