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70012589 = 208733547
BaseRepresentation
bin1000010110001…
…00111010101101
311212202000012212
410023010322231
5120410400324
610540340205
71510045223
oct413047255
9155660185
1070012589
113657a549
121b544665
131167448a
149426b13
15622e70e
hex42c4ead

70012589 has 4 divisors (see below), whose sum is σ = 70048224. Its totient is φ = 69976956.

The previous prime is 70012577. The next prime is 70012597. The reversal of 70012589 is 98521007.

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 a de Polignac number, because none of the positive numbers 2k-70012589 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 (70012519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14687 + ... + 18860.

It is an arithmetic number, because the mean of its divisors is an integer number (17512056).

Almost surely, 270012589 is an apocalyptic number.

It is an amenable number.

70012589 is a deficient number, since it is larger than the sum of its proper divisors (35635).

70012589 is a wasteful number, since it uses less digits than its factorization.

70012589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35634.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 70012589 is about 8367.3525681663. The cubic root of 70012589 is about 412.1532346240.

The spelling of 70012589 in words is "seventy million, twelve thousand, five hundred eighty-nine".

Divisors: 1 2087 33547 70012589