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55893638 = 2143919421
BaseRepresentation
bin1101010100110…
…1111010000110
310220011200122202
43111031322012
5103302044023
65313554502
71246042133
oct325157206
9126150582
1055893638
1129606799
1216875a32
13b76cb78
1475cd58a
154d91128
hex354de86

55893638 has 8 divisors (see below), whose sum is σ = 83903040. Its totient is φ = 27925960.

The previous prime is 55893613. The next prime is 55893647. The reversal of 55893638 is 83639855.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 55893592 and 55893601.

It is a congruent number.

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, 6833 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (10487880).

Almost surely, 255893638 is an apocalyptic number.

55893638 is a deficient number, since it is larger than the sum of its proper divisors (28009402).

55893638 is a wasteful number, since it uses less digits than its factorization.

55893638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862.

The product of its digits is 777600, while the sum is 47.

The square root of 55893638 is about 7476.2047858522. The cubic root of 55893638 is about 382.3438649633.

The spelling of 55893638 in words is "fifty-five million, eight hundred ninety-three thousand, six hundred thirty-eight".

Divisors: 1 2 1439 2878 19421 38842 27946819 55893638