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64988230 = 256498823
BaseRepresentation
bin1111011111101…
…0010001000110
311112021202002111
43313322101012
5113114110410
610240531234
71416251026
oct367722106
9145252074
1064988230
113375868a
1219920b1a
1310605598
1488b9a86
155a8ab8a
hex3dfa446

64988230 has 8 divisors (see below), whose sum is σ = 116978832. Its totient is φ = 25995288.

The previous prime is 64988219. The next prime is 64988233. The reversal of 64988230 is 3288946.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64988233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3249402 + ... + 3249421.

It is an arithmetic number, because the mean of its divisors is an integer number (14622354).

Almost surely, 264988230 is an apocalyptic number.

64988230 is a deficient number, since it is larger than the sum of its proper divisors (51990602).

64988230 is a wasteful number, since it uses less digits than its factorization.

64988230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498830.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 64988230 is about 8061.5277708385. The cubic root of 64988230 is about 402.0483057056.

The spelling of 64988230 in words is "sixty-four million, nine hundred eighty-eight thousand, two hundred thirty".

Divisors: 1 2 5 10 6498823 12997646 32494115 64988230