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70259957 = 631111347
BaseRepresentation
bin1000011000000…
…01010011110101
311220012120112122
410030001103311
5120441304312
610545525325
71512125345
oct414012365
9156176478
1070259957
1136729389
121b643845
131172cc51
14948cd25
15627cb72
hex43014f5

70259957 has 4 divisors (see below), whose sum is σ = 70371936. Its totient is φ = 70147980.

The previous prime is 70259951. The next prime is 70260007. The reversal of 70259957 is 75995207.

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 70259957 - 218 = 69997813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70259951) 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 3 ways as a sum of consecutive naturals, for example, 55043 + ... + 56304.

It is an arithmetic number, because the mean of its divisors is an integer number (17592984).

Almost surely, 270259957 is an apocalyptic number.

It is an amenable number.

70259957 is a deficient number, since it is larger than the sum of its proper divisors (111979).

70259957 is a wasteful number, since it uses less digits than its factorization.

70259957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111978.

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 70259957 is about 8382.1212708956. The cubic root of 70259957 is about 412.6380697283.

The spelling of 70259957 in words is "seventy million, two hundred fifty-nine thousand, nine hundred fifty-seven".

Divisors: 1 631 111347 70259957