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71542055 = 5132414567
BaseRepresentation
bin1000100001110…
…10010100100111
311222121201020202
410100322110213
5121303321210
611033221115
71526045264
oct420722447
9158551222
1071542055
1137424672
121bb6179b
1311a8b6a0
14970426b
1564329a5
hex443a527

71542055 has 16 divisors (see below), whose sum is σ = 92858304. Its totient is φ = 52600320.

The previous prime is 71541989. The next prime is 71542063. The reversal of 71542055 is 55024517.

It is not a de Polignac number, because 71542055 - 210 = 71541031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13382 + ... + 17948.

It is an arithmetic number, because the mean of its divisors is an integer number (5803644).

Almost surely, 271542055 is an apocalyptic number.

71542055 is a deficient number, since it is larger than the sum of its proper divisors (21316249).

71542055 is a wasteful number, since it uses less digits than its factorization.

71542055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 71542055 is about 8458.2536613653. The cubic root of 71542055 is about 415.1328843337.

The spelling of 71542055 in words is "seventy-one million, five hundred forty-two thousand, fifty-five".

Divisors: 1 5 13 65 241 1205 3133 4567 15665 22835 59371 296855 1100647 5503235 14308411 71542055