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55493982 = 2323082999
BaseRepresentation
bin1101001110110…
…0010101011110
310212102101102200
43103230111132
5103201301412
65301232330
71242456015
oct323542536
9125371380
1055493982
11293634a5
12167026a6
13b65cc9b
147527a7c
154d129dc
hex34ec55e

55493982 has 12 divisors (see below), whose sum is σ = 120237000. Its totient is φ = 18497988.

The previous prime is 55493959. The next prime is 55493993. The reversal of 55493982 is 28939455.

55493982 is a `hidden beast` number, since 554 + 9 + 3 + 98 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1541482 + ... + 1541517.

It is an arithmetic number, because the mean of its divisors is an integer number (10019750).

Almost surely, 255493982 is an apocalyptic number.

55493982 is an abundant number, since it is smaller than the sum of its proper divisors (64743018).

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

55493982 is a wasteful number, since it uses less digits than its factorization.

55493982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083007 (or 3083004 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 55493982 is about 7449.4283002120. The cubic root of 55493982 is about 381.4303938208.

The spelling of 55493982 in words is "fifty-five million, four hundred ninety-three thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 18 3082999 6165998 9248997 18497994 27746991 55493982