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55340761 = 747592851
BaseRepresentation
bin1101001100011…
…0111011011001
310212010121020211
43103012323121
5103131401021
65254051121
71241250220
oct323067331
9125117224
1055340761
1129269373
1216649aa1
13b608318
1474c7cb7
154cd23e1
hex34c6ed9

55340761 has 16 divisors (see below), whose sum is σ = 65710080. Its totient is φ = 45622800.

The previous prime is 55340759. The next prime is 55340771. The reversal of 55340761 is 16704355.

It is a cyclic number.

It is not a de Polignac number, because 55340761 - 21 = 55340759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55340771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17986 + ... + 20836.

It is an arithmetic number, because the mean of its divisors is an integer number (4106880).

Almost surely, 255340761 is an apocalyptic number.

It is an amenable number.

55340761 is a deficient number, since it is larger than the sum of its proper divisors (10369319).

55340761 is a wasteful number, since it uses less digits than its factorization.

55340761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55340761 is about 7439.1371139400. The cubic root of 55340761 is about 381.0790222856.

It can be divided in two parts, 553 and 40761, that added together give a palindrome (41314).

The spelling of 55340761 in words is "fifty-five million, three hundred forty thousand, seven hundred sixty-one".

Divisors: 1 7 47 59 329 413 2773 2851 19411 19957 133997 168209 937979 1177463 7905823 55340761