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55407079 = 713976277
BaseRepresentation
bin1101001101011…
…1000111100111
310212020222020001
43103113013213
5103141011304
65255322131
71241644450
oct323270747
9125228201
1055407079
1129304182
1216680347
13b62c570
147504127
154ce6da4
hex34d71e7

55407079 has 16 divisors (see below), whose sum is σ = 68907328. Its totient is φ = 43379712.

The previous prime is 55407067. The next prime is 55407103. The reversal of 55407079 is 97070455.

It is a cyclic number.

It is not a de Polignac number, because 55407079 - 213 = 55398887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55407379) 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, 5689 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (4306708).

Almost surely, 255407079 is an apocalyptic number.

55407079 is a deficient number, since it is larger than the sum of its proper divisors (13500249).

55407079 is a wasteful number, since it uses less digits than its factorization.

55407079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 55407079 is about 7443.5931511603. The cubic root of 55407079 is about 381.2311844517.

The spelling of 55407079 in words is "fifty-five million, four hundred seven thousand, seventy-nine".

Divisors: 1 7 13 91 97 679 1261 6277 8827 43939 81601 571207 608869 4262083 7915297 55407079