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70129041 = 323376347
BaseRepresentation
bin1000010111000…
…01010110010001
311212221220221220
410023201112101
5120423112131
610543035253
71511041563
oct413412621
9155856856
1070129041
1136649a94
121b59bb29
13116b5498
149457333
156253e96
hex42e1591

70129041 has 4 divisors (see below), whose sum is σ = 93505392. Its totient is φ = 46752692.

The previous prime is 70129027. The next prime is 70129051. The reversal of 70129041 is 14092107.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14092107 = 34697369.

It is a cyclic number.

It is not a de Polignac number, because 70129041 - 210 = 70128017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70129021) 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, 11688171 + ... + 11688176.

It is an arithmetic number, because the mean of its divisors is an integer number (23376348).

Almost surely, 270129041 is an apocalyptic number.

It is an amenable number.

70129041 is a deficient number, since it is larger than the sum of its proper divisors (23376351).

70129041 is a wasteful number, since it uses less digits than its factorization.

70129041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23376350.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 70129041 is about 8374.3083893537. The cubic root of 70129041 is about 412.3816196573.

The spelling of 70129041 in words is "seventy million, one hundred twenty-nine thousand, forty-one".

Divisors: 1 3 23376347 70129041