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55413071 = 726118539
BaseRepresentation
bin1101001101100…
…0100101001111
310212021021102222
43103120211033
5103141204241
65255405555
71242001100
oct323304517
9125237388
1055413071
112930872a
12166838bb
13b6321cc
1475063a7
154ce8a4b
hex34d894f

55413071 has 12 divisors (see below), whose sum is σ = 65520360. Its totient is φ = 46715760.

The previous prime is 55413067. The next prime is 55413079. The reversal of 55413071 is 17031455.

It is not a de Polignac number, because 55413071 - 22 = 55413067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55413071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55413079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6281 + ... + 12258.

It is an arithmetic number, because the mean of its divisors is an integer number (5460030).

Almost surely, 255413071 is an apocalyptic number.

55413071 is a deficient number, since it is larger than the sum of its proper divisors (10107289).

55413071 is a wasteful number, since it uses less digits than its factorization.

55413071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614 (or 18607 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55413071 is about 7443.9956340664. The cubic root of 55413071 is about 381.2449267084.

The spelling of 55413071 in words is "fifty-five million, four hundred thirteen thousand, seventy-one".

Divisors: 1 7 49 61 427 2989 18539 129773 908411 1130879 7916153 55413071