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70069712 = 2437118361
BaseRepresentation
bin1000010110100…
…10110111010000
311212211220120112
410023102313100
5120414212322
610541500452
71510403606
oct413226720
9155756515
1070069712
1136609459
121b571728
131169448b
14943d876
1562415e2
hex42d2dd0

70069712 has 20 divisors (see below), whose sum is σ = 139430436. Its totient is φ = 34087680.

The previous prime is 70069709. The next prime is 70069717. The reversal of 70069712 is 21796007.

It can be written as a sum of positive squares in 2 ways, for example, as 67831696 + 2238016 = 8236^2 + 1496^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70069717) 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, 58589 + ... + 59772.

Almost surely, 270069712 is an apocalyptic number.

It is an amenable number.

70069712 is a deficient number, since it is larger than the sum of its proper divisors (69360724).

70069712 is a wasteful number, since it uses less digits than its factorization.

70069712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118406 (or 118400 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 70069712 is about 8370.7653174605. The cubic root of 70069712 is about 412.2652955618.

The spelling of 70069712 in words is "seventy million, sixty-nine thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 37 74 148 296 592 118361 236722 473444 946888 1893776 4379357 8758714 17517428 35034856 70069712