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55194351 = 373252029
BaseRepresentation
bin1101001010001…
…1001011101111
310211212011102020
43102203023233
5103112204401
65251001223
71240100322
oct322431357
9124764366
1055194351
1129179373
1216599213
13b5867a4
14748a7b9
154ca3d36
hex34a32ef

55194351 has 8 divisors (see below), whose sum is σ = 74600880. Its totient is φ = 36292032.

The previous prime is 55194331. The next prime is 55194367. The reversal of 55194351 is 15349155.

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

It is not a de Polignac number, because 55194351 - 26 = 55194287 is a prime.

It is a super-2 number, since 2×551943512 = 6092832764622402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55194311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125796 + ... + 126233.

It is an arithmetic number, because the mean of its divisors is an integer number (9325110).

Almost surely, 255194351 is an apocalyptic number.

55194351 is a deficient number, since it is larger than the sum of its proper divisors (19406529).

55194351 is a wasteful number, since it uses less digits than its factorization.

55194351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252105.

The product of its digits is 13500, while the sum is 33.

The square root of 55194351 is about 7429.2900737554. The cubic root of 55194351 is about 380.7426634914.

It can be divided in two parts, 5519 and 4351, that added together give a triangular number (9870 = T140).

The spelling of 55194351 in words is "fifty-five million, one hundred ninety-four thousand, three hundred fifty-one".

Divisors: 1 3 73 219 252029 756087 18398117 55194351