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55837906 = 234979997
BaseRepresentation
bin1101010100000…
…0010011010010
310220001212012121
43111000103102
5103243303111
65312444454
71245420505
oct325002322
9126055177
1055837906
1129578933
121684972a
13b7506a7
1475b713c
154d7e871
hex35404d2

55837906 has 8 divisors (see below), whose sum is σ = 83997900. Its totient is φ = 27838608.

The previous prime is 55837897. The next prime is 55837931. The reversal of 55837906 is 60973855.

It can be written as a sum of positive squares in 2 ways, for example, as 55130625 + 707281 = 7425^2 + 841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39301 + ... + 40696.

Almost surely, 255837906 is an apocalyptic number.

55837906 is a deficient number, since it is larger than the sum of its proper divisors (28159994).

55837906 is a wasteful number, since it uses less digits than its factorization.

55837906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80348.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 55837906 is about 7472.4765640315. The cubic root of 55837906 is about 382.2167433125.

The spelling of 55837906 in words is "fifty-five million, eight hundred thirty-seven thousand, nine hundred six".

Divisors: 1 2 349 698 79997 159994 27918953 55837906