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70107688 = 2371251923
BaseRepresentation
bin1000010110111…
…00001000101000
311212220211200001
410023130020220
5120421421223
610542352344
71510622410
oct413341050
9155824601
1070107688
1136634a42
121b58b6b4
13116a8851
14944d640
15624c9ad
hex42dc228

70107688 has 16 divisors (see below), whose sum is σ = 150230880. Its totient is φ = 30046128.

The previous prime is 70107659. The next prime is 70107689. The reversal of 70107688 is 88670107.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70107689) 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, 625906 + ... + 626017.

It is an arithmetic number, because the mean of its divisors is an integer number (9389430).

Almost surely, 270107688 is an apocalyptic number.

It is an amenable number.

70107688 is an abundant number, since it is smaller than the sum of its proper divisors (80123192).

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

70107688 is a wasteful number, since it uses less digits than its factorization.

70107688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251936 (or 1251932 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 70107688 is about 8373.0333810394. The cubic root of 70107688 is about 412.3397612087.

The spelling of 70107688 in words is "seventy million, one hundred seven thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 1251923 2503846 5007692 8763461 10015384 17526922 35053844 70107688