Search a number
-
+
64130404 = 22135920903
BaseRepresentation
bin1111010010100…
…0110101100100
311110200011101011
43310220311210
5112404133104
610210312004
71406046052
oct364506544
9143604334
1064130404
1133222138
1219588604
1310394cb0
1487351d2
15596b904
hex3d28d64

64130404 has 24 divisors (see below), whose sum is σ = 122915520. Its totient is φ = 29095584.

The previous prime is 64130401. The next prime is 64130431. The reversal of 64130404 is 40403146.

It is a happy number.

64130404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641304042 = 8225417434406432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64130401) 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 7 ways as a sum of consecutive naturals, for example, 7384 + ... + 13519.

It is an arithmetic number, because the mean of its divisors is an integer number (5121480).

Almost surely, 264130404 is an apocalyptic number.

It is an amenable number.

64130404 is a deficient number, since it is larger than the sum of its proper divisors (58785116).

64130404 is a wasteful number, since it uses less digits than its factorization.

64130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979 (or 20977 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 64130404 is about 8008.1461025633. The cubic root of 64130404 is about 400.2714906903.

The spelling of 64130404 in words is "sixty-four million, one hundred thirty thousand, four hundred four".

Divisors: 1 2 4 13 26 52 59 118 236 767 1534 3068 20903 41806 83612 271739 543478 1086956 1233277 2466554 4933108 16032601 32065202 64130404