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70082870 = 25111349009
BaseRepresentation
bin1000010110101…
…10000100110110
311212212120121212
410023112010312
5120420122440
610542041422
71510460144
oct413260466
9155776555
1070082870
1136618330
121b579272
131169a470
149444594
156245465
hex42d6136

70082870 has 32 divisors (see below), whose sum is σ = 148206240. Its totient is φ = 23523840.

The previous prime is 70082867. The next prime is 70082897. The reversal of 70082870 is 7828007.

It is a happy 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, 23075 + ... + 25934.

It is an arithmetic number, because the mean of its divisors is an integer number (4631445).

Almost surely, 270082870 is an apocalyptic number.

70082870 is an abundant number, since it is smaller than the sum of its proper divisors (78123370).

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

70082870 is a wasteful number, since it uses less digits than its factorization.

70082870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49040.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 70082870 is about 8371.5512302082. The cubic root of 70082870 is about 412.2910996126.

The spelling of 70082870 in words is "seventy million, eighty-two thousand, eight hundred seventy".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 49009 98018 245045 490090 539099 637117 1078198 1274234 2695495 3185585 5390990 6371170 7008287 14016574 35041435 70082870