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70106715 = 35578243
BaseRepresentation
bin1000010110110…
…11111001011011
311212220210100000
410023123321123
5120421403330
610542344043
71510616520
oct413337133
9155823300
1070106715
1136634238
121b58b023
13116a8283
14944d147
15624c560
hex42dbe5b

70106715 has 48 divisors (see below), whose sum is σ = 144039168. Its totient is φ = 32044896.

The previous prime is 70106711. The next prime is 70106719. The reversal of 70106715 is 51760107.

It is an interprime number because it is at equal distance from previous prime (70106711) and next prime (70106719).

It is not a de Polignac number, because 70106715 - 22 = 70106711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70106711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4384 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (3000816).

Almost surely, 270106715 is an apocalyptic number.

70106715 is an abundant number, since it is smaller than the sum of its proper divisors (73932453).

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

70106715 is an equidigital number, since it uses as much as digits as its factorization.

70106715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270 (or 8258 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 70106715 is about 8372.9752776418. The cubic root of 70106715 is about 412.3378536269.

The spelling of 70106715 in words is "seventy million, one hundred six thousand, seven hundred fifteen".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 243 315 405 567 945 1215 1701 2835 8243 8505 24729 41215 57701 74187 123645 173103 222561 288505 370935 519309 667683 865515 1112805 1557927 2003049 2596545 3338415 4673781 7789635 10015245 14021343 23368905 70106715