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55147674 = 239191279
BaseRepresentation
bin1101001001011…
…1110010011010
310211202210101110
43102113302122
5103104211144
65250001150
71236514251
oct322276232
9124683343
1055147674
112914729a
12165761b6
13b56b47a
147477798
154c950b9
hex3497c9a

55147674 has 8 divisors (see below), whose sum is σ = 110295360. Its totient is φ = 18382556.

The previous prime is 55147661. The next prime is 55147679. The reversal of 55147674 is 47674155.

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

55147674 is an admirable number.

It is a super-2 number, since 2×551476742 = 6082531895220552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55147679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4595634 + ... + 4595645.

It is an arithmetic number, because the mean of its divisors is an integer number (13786920).

Almost surely, 255147674 is an apocalyptic number.

55147674 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.

55147674 is a wasteful number, since it uses less digits than its factorization.

55147674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191284.

The product of its digits is 117600, while the sum is 39.

The square root of 55147674 is about 7426.1479920616. The cubic root of 55147674 is about 380.6353038483.

The spelling of 55147674 in words is "fifty-five million, one hundred forty-seven thousand, six hundred seventy-four".

Divisors: 1 2 3 6 9191279 18382558 27573837 55147674