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55144351 = 711794339
BaseRepresentation
bin1101001001011…
…0111110011111
310211202121211101
43102112332133
5103104104401
65245533531
71236501463
oct322267637
9124677741
1055144351
1129144849
12165742a7
13b569ac2
1474764a3
154c94101
hex3496f9f

55144351 has 8 divisors (see below), whose sum is σ = 56246400. Its totient is φ = 54051480.

The previous prime is 55144337. The next prime is 55144373. The reversal of 55144351 is 15344155.

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

It is a cyclic number.

It is not a de Polignac number, because 55144351 - 29 = 55143839 is a prime.

It is a super-2 number, since 2×551443512 = 6081798894422402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10540 + ... + 14878.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 255144351 is an apocalyptic number.

55144351 is a deficient number, since it is larger than the sum of its proper divisors (1102049).

55144351 is a wasteful number, since it uses less digits than its factorization.

55144351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589.

The product of its digits is 6000, while the sum is 28.

The square root of 55144351 is about 7425.9242522396. The cubic root of 55144351 is about 380.6276584577.

The spelling of 55144351 in words is "fifty-five million, one hundred forty-four thousand, three hundred fifty-one".

Divisors: 1 71 179 4339 12709 308069 776681 55144351