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71742088 = 2311815251
BaseRepresentation
bin1000100011010…
…11001010001000
311222222212122101
410101223022020
5121331221323
611041403144
71530540415
oct421531210
9158885571
1071742088
1137550990
12200394b4
1311b2b752
14975710c
156471dad
hex446b288

71742088 has 16 divisors (see below), whose sum is σ = 146745360. Its totient is φ = 32610000.

The previous prime is 71742079. The next prime is 71742089. The reversal of 71742088 is 88024717.

It is not an unprimeable number, because it can be changed into a prime (71742089) 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, 407538 + ... + 407713.

It is an arithmetic number, because the mean of its divisors is an integer number (9171585).

Almost surely, 271742088 is an apocalyptic number.

It is an amenable number.

71742088 is an abundant number, since it is smaller than the sum of its proper divisors (75003272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71742088 is a wasteful number, since it uses less digits than its factorization.

71742088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815268 (or 815264 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 71742088 is about 8470.0701295798. The cubic root of 71742088 is about 415.5194308770.

The spelling of 71742088 in words is "seventy-one million, seven hundred forty-two thousand, eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 815251 1630502 3261004 6522008 8967761 17935522 35871044 71742088