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70102135 = 5172928439
BaseRepresentation
bin1000010110110…
…10110001110111
311212220120001101
410023122301313
5120421232020
610542310531
71510600255
oct413326167
9155816041
1070102135
1136630854
121b588447
13116a616c
14944b5d5
15624b00a
hex42dac77

70102135 has 16 divisors (see below), whose sum is σ = 92145600. Its totient is φ = 50960896.

The previous prime is 70102133. The next prime is 70102139. The reversal of 70102135 is 53120107.

It is a cyclic number.

It is not a de Polignac number, because 70102135 - 21 = 70102133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70102133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11755 + ... + 16684.

It is an arithmetic number, because the mean of its divisors is an integer number (5759100).

Almost surely, 270102135 is an apocalyptic number.

70102135 is a deficient number, since it is larger than the sum of its proper divisors (22043465).

70102135 is a wasteful number, since it uses less digits than its factorization.

70102135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 70102135 is about 8372.7017742184. The cubic root of 70102135 is about 412.3288742279.

The spelling of 70102135 in words is "seventy million, one hundred two thousand, one hundred thirty-five".

Divisors: 1 5 17 29 85 145 493 2465 28439 142195 483463 824731 2417315 4123655 14020427 70102135