Search a number
-
+
64009461 = 3197971409
BaseRepresentation
bin1111010000101…
…1010011110101
311110110000110210
43310023103311
5112341300321
610203540033
71405033335
oct364132365
9143400423
1064009461
113314a28a
121952a619
1310351c29
1487030c5
155945b76
hex3d0b4f5

64009461 has 16 divisors (see below), whose sum is σ = 90014400. Its totient is φ = 40347648.

The previous prime is 64009459. The next prime is 64009469. The reversal of 64009461 is 16490046.

It is not a de Polignac number, because 64009461 - 21 = 64009459 is a prime.

It is a super-2 number, since 2×640094612 = 8194422195021042, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64009469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44725 + ... + 46133.

It is an arithmetic number, because the mean of its divisors is an integer number (5625900).

Almost surely, 264009461 is an apocalyptic number.

It is an amenable number.

64009461 is a deficient number, since it is larger than the sum of its proper divisors (26004939).

64009461 is a wasteful number, since it uses less digits than its factorization.

64009461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 64009461 is about 8000.5912906485. The cubic root of 64009461 is about 400.0197094455.

The spelling of 64009461 in words is "sixty-four million, nine thousand, four hundred sixty-one".

Divisors: 1 3 19 57 797 1409 2391 4227 15143 26771 45429 80313 1122973 3368919 21336487 64009461