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70747012 = 22712132083
BaseRepresentation
bin1000011011110…
…00001110000100
311221010022122201
410031320032010
5121102401022
611004204244
71516224340
oct415701604
9157108581
1070747012
1136a31306
121b839684
131187084b
149578620
156327127
hex4378384

70747012 has 24 divisors (see below), whose sum is σ = 141678656. Its totient is φ = 30280608.

The previous prime is 70747003. The next prime is 70747043. The reversal of 70747012 is 21074707.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32923 + ... + 35005.

Almost surely, 270747012 is an apocalyptic number.

It is an amenable number.

70747012 is an abundant number, since it is smaller than the sum of its proper divisors (70931644).

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

70747012 is a wasteful number, since it uses less digits than its factorization.

70747012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 70747012 is about 8411.1243005914. The cubic root of 70747012 is about 413.5893693479.

The spelling of 70747012 in words is "seventy million, seven hundred forty-seven thousand, twelve".

Divisors: 1 2 4 7 14 28 1213 2083 2426 4166 4852 8332 8491 14581 16982 29162 33964 58324 2526679 5053358 10106716 17686753 35373506 70747012