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55144852 = 2271969459
BaseRepresentation
bin1101001001011…
…1000110010100
310211202122111221
43102113012110
5103104113402
65245540124
71236503110
oct322270624
9124678457
1055144852
1129145164
1216574644
13b56a0b9
147476740
154c94337
hex3497194

55144852 has 12 divisors (see below), whose sum is σ = 110289760. Its totient is φ = 23633496.

The previous prime is 55144847. The next prime is 55144871. The reversal of 55144852 is 25844155.

It is a happy number.

55144852 is an admirable number.

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, 984702 + ... + 984757.

Almost surely, 255144852 is an apocalyptic number.

It is an amenable number.

55144852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55144852 is a wasteful number, since it uses less digits than its factorization.

55144852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969470 (or 1969468 counting only the distinct ones).

The product of its digits is 32000, while the sum is 34.

The square root of 55144852 is about 7425.9579853376. The cubic root of 55144852 is about 380.6288111529.

The spelling of 55144852 in words is "fifty-five million, one hundred forty-four thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 14 28 1969459 3938918 7877836 13786213 27572426 55144852