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7070666690 = 251779526483
BaseRepresentation
bin1101001010111000…
…11100111111000010
3200020202201002021002
412211130130333002
5103440042313230
63125340532002
7340134450413
oct64534347702
920222632232
107070666690
112aa923059a
121453b51002
13888b49059
144b10b380a
152b5b27545
hex1a571cfc2

7070666690 has 32 divisors (see below), whose sum is σ = 13646465280. Its totient is φ = 2628198144.

The previous prime is 7070666689. The next prime is 7070666719. The reversal of 7070666690 is 966660707.

It is a super-2 number, since 2×70706666902 = 99988654882151112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249812 + ... + 276671.

It is an arithmetic number, because the mean of its divisors is an integer number (426452040).

Almost surely, 27070666690 is an apocalyptic number.

7070666690 is a deficient number, since it is larger than the sum of its proper divisors (6575798590).

7070666690 is a wasteful number, since it uses less digits than its factorization.

7070666690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526586.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 7070666690 is about 84087.2564066637. The cubic root of 7070666690 is about 1919.3468092382.

The spelling of 7070666690 in words is "seven billion, seventy million, six hundred sixty-six thousand, six hundred ninety".

Divisors: 1 2 5 10 17 34 79 85 158 170 395 790 1343 2686 6715 13430 526483 1052966 2632415 5264830 8950211 17900422 41592157 44751055 83184314 89502110 207960785 415921570 707066669 1414133338 3535333345 7070666690