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52977908 = 2297136541
BaseRepresentation
bin1100101000011…
…0000011110100
310200200120000202
43022012003310
5102030243113
65131300032
71212206354
oct312060364
9120616022
1052977908
11279a50a5
12158aa618
13ac8b999
147070b64
1549b7258
hex32860f4

52977908 has 12 divisors (see below), whose sum is σ = 93667812. Its totient is φ = 26215680.

The previous prime is 52977907. The next prime is 52977913. The reversal of 52977908 is 80977925.

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 41499364 = 3388^2 + 6442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52977907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67883 + ... + 68658.

It is an arithmetic number, because the mean of its divisors is an integer number (7805651).

Almost surely, 252977908 is an apocalyptic number.

It is an amenable number.

52977908 is a deficient number, since it is larger than the sum of its proper divisors (40689904).

52977908 is a wasteful number, since it uses less digits than its factorization.

52977908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136642 (or 136640 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 52977908 is about 7278.5924463457. The cubic root of 52977908 is about 375.5763770588.

The spelling of 52977908 in words is "fifty-two million, nine hundred seventy-seven thousand, nine hundred eight".

Divisors: 1 2 4 97 194 388 136541 273082 546164 13244477 26488954 52977908