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64670485 = 5115572111
BaseRepresentation
bin1111011010110…
…0101100010101
311111200121020011
43312230230111
5113023423420
610230040221
71413455455
oct366545425
9144617204
1064670485
1133560990
12197a9071
1310523a79
148835d65
155a2695a
hex3dacb15

64670485 has 16 divisors (see below), whose sum is σ = 84851712. Its totient is φ = 46926400.

The previous prime is 64670467. The next prime is 64670491. The reversal of 64670485 is 58407646.

It is not a de Polignac number, because 64670485 - 25 = 64670453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29580 + ... + 31690.

It is an arithmetic number, because the mean of its divisors is an integer number (5303232).

Almost surely, 264670485 is an apocalyptic number.

It is an amenable number.

64670485 is a deficient number, since it is larger than the sum of its proper divisors (20181227).

64670485 is a wasteful number, since it uses less digits than its factorization.

64670485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 64670485 is about 8041.7961302187. The cubic root of 64670485 is about 401.3919940125.

The spelling of 64670485 in words is "sixty-four million, six hundred seventy thousand, four hundred eighty-five".

Divisors: 1 5 11 55 557 2111 2785 6127 10555 23221 30635 116105 1175827 5879135 12934097 64670485