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64704070 = 2561910453
BaseRepresentation
bin1111011011010…
…0111001000110
311111202022022001
43312310321012
5113031012240
610230455514
71413655414
oct366647106
9144668261
1064704070
1133584142
121980459a
1310536142
1488442b4
155a3189a
hex3db4e46

64704070 has 16 divisors (see below), whose sum is σ = 116666640. Its totient is φ = 25837344.

The previous prime is 64704053. The next prime is 64704071. The reversal of 64704070 is 7040746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64704071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964 + ... + 11416.

It is an arithmetic number, because the mean of its divisors is an integer number (7291665).

Almost surely, 264704070 is an apocalyptic number.

64704070 is a deficient number, since it is larger than the sum of its proper divisors (51962570).

64704070 is a wasteful number, since it uses less digits than its factorization.

64704070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 64704070 is about 8043.8840120927. The cubic root of 64704070 is about 401.4614662876.

The spelling of 64704070 in words is "sixty-four million, seven hundred four thousand, seventy".

Divisors: 1 2 5 10 619 1238 3095 6190 10453 20906 52265 104530 6470407 12940814 32352035 64704070