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70619131 = 1123279127
BaseRepresentation
bin1000011010110…
…00111111111011
311220212211020101
410031120333323
5121034303011
611001340231
71515152452
oct415307773
9156784211
1070619131
1136954220
121b797677
131182758b
149543b99
1562ee2c1
hex4358ffb

70619131 has 8 divisors (see below), whose sum is σ = 80388864. Its totient is φ = 61407720.

The previous prime is 70619113. The next prime is 70619137. The reversal of 70619131 is 13191607.

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

It is not a de Polignac number, because 70619131 - 211 = 70617083 is a prime.

It is a super-2 number, since 2×706191312 = 9974123326390322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70619131.

It is not an unprimeable number, because it can be changed into a prime (70619137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139311 + ... + 139816.

It is an arithmetic number, because the mean of its divisors is an integer number (10048608).

Almost surely, 270619131 is an apocalyptic number.

70619131 is a deficient number, since it is larger than the sum of its proper divisors (9769733).

70619131 is a wasteful number, since it uses less digits than its factorization.

70619131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279161.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 70619131 is about 8403.5189652907. The cubic root of 70619131 is about 413.3400201976.

The spelling of 70619131 in words is "seventy million, six hundred nineteen thousand, one hundred thirty-one".

Divisors: 1 11 23 253 279127 3070397 6419921 70619131