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70679029 = 199355171
BaseRepresentation
bin1000011011001…
…11100111110101
311220222212101211
410031213213311
5121043212104
611002521421
71515522211
oct415474765
9156885354
1070679029
1136995223
121b806271
1311848915
14955b941
156311e04
hex43679f5

70679029 has 4 divisors (see below), whose sum is σ = 71034400. Its totient is φ = 70323660.

The previous prime is 70679027. The next prime is 70679033. The reversal of 70679029 is 92097607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70679029 - 21 = 70679027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70678982 and 70679000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70679027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177387 + ... + 177784.

It is an arithmetic number, because the mean of its divisors is an integer number (17758600).

Almost surely, 270679029 is an apocalyptic number.

It is an amenable number.

70679029 is a deficient number, since it is larger than the sum of its proper divisors (355371).

70679029 is a wasteful number, since it uses less digits than its factorization.

70679029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355370.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 70679029 is about 8407.0820740611. The cubic root of 70679029 is about 413.4568499369.

The spelling of 70679029 in words is "seventy million, six hundred seventy-nine thousand, twenty-nine".

Divisors: 1 199 355171 70679029