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70252860 = 22358314107
BaseRepresentation
bin1000010111111…
…11100100111100
311220012012210210
410023333210330
5120441042420
610545432420
71512065556
oct413774474
9156165723
1070252860
1136724017
121b63b710
1311729952
14948a4d6
15627a9e0
hex42ff93c

70252860 has 48 divisors (see below), whose sum is σ = 199092096. Its totient is φ = 18507072.

The previous prime is 70252859. The next prime is 70252909. The reversal of 70252860 is 6825207.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2074 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (4147752).

Almost surely, 270252860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70252860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99546048).

70252860 is an abundant number, since it is smaller than the sum of its proper divisors (128839236).

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

70252860 is a wasteful number, since it uses less digits than its factorization.

70252860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202 (or 14200 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70252860 is about 8381.6979186797. The cubic root of 70252860 is about 412.6241756549.

The spelling of 70252860 in words is "seventy million, two hundred fifty-two thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 4980 14107 28214 42321 56428 70535 84642 141070 169284 211605 282140 423210 846420 1170881 2341762 3512643 4683524 5854405 7025286 11708810 14050572 17563215 23417620 35126430 70252860