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20070572070 = 2354315558583
BaseRepresentation
bin10010101100010011…
…001010000000100110
31220210202022200221010
4102230103022000212
5312101031301240
613115330003050
71310240022243
oct225423120046
956722280833
1020070572070
11856a35094a
123a81716486
131b7b1b6963
14d858165ca
157c705b280
hex4ac4ca026

20070572070 has 32 divisors (see below), whose sum is σ = 49289594112. Its totient is φ = 5227683552.

The previous prime is 20070572047. The next prime is 20070572107. The reversal of 20070572070 is 7027507002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7778002 + ... + 7780581.

It is an arithmetic number, because the mean of its divisors is an integer number (1540299816).

Almost surely, 220070572070 is an apocalyptic number.

20070572070 is an abundant number, since it is smaller than the sum of its proper divisors (29219022042).

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

20070572070 is a wasteful number, since it uses less digits than its factorization.

20070572070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15558636.

The product of its (nonzero) digits is 6860, while the sum is 30.

The spelling of 20070572070 in words is "twenty billion, seventy million, five hundred seventy-two thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 15558583 31117166 46675749 77792915 93351498 155585830 233378745 466757490 669019069 1338038138 2007057207 3345095345 4014114414 6690190690 10035286035 20070572070