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70656061 = 797104059
BaseRepresentation
bin1000011011000…
…10000000111101
311220221200220011
410031202000331
5121041443221
611002223221
71515365230
oct415420075
9156850804
1070656061
1136979a43
121b7b4b11
131183b328
149553417
15630a1e1
hex436203d

70656061 has 8 divisors (see below), whose sum is σ = 81583040. Its totient is φ = 59937408.

The previous prime is 70656013. The next prime is 70656077. The reversal of 70656061 is 16065607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70656061 - 29 = 70655549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70656011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51351 + ... + 52708.

It is an arithmetic number, because the mean of its divisors is an integer number (10197880).

Almost surely, 270656061 is an apocalyptic number.

It is an amenable number.

70656061 is a deficient number, since it is larger than the sum of its proper divisors (10926979).

70656061 is a wasteful number, since it uses less digits than its factorization.

70656061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104163.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 70656061 is about 8405.7159718848. The cubic root of 70656061 is about 413.4120591604.

It can be divided in two parts, 7065606 and 1, that added together give a palindrome (7065607).

The spelling of 70656061 in words is "seventy million, six hundred fifty-six thousand, sixty-one".

Divisors: 1 7 97 679 104059 728413 10093723 70656061