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64864150 = 25213731367
BaseRepresentation
bin1111011101101…
…1111110010110
311112001102212221
43313123332112
5113101123100
610234132554
71415223211
oct367337626
9145042787
1064864150
113368343a
121988115a
1310590c70
148886778
155a6401a
hex3ddbf96

64864150 has 48 divisors (see below), whose sum is σ = 131804064. Its totient is φ = 23604480.

The previous prime is 64864141. The next prime is 64864153. The reversal of 64864150 is 5146846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64864153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46767 + ... + 48133.

It is an arithmetic number, because the mean of its divisors is an integer number (2745918).

Almost surely, 264864150 is an apocalyptic number.

64864150 is an abundant number, since it is smaller than the sum of its proper divisors (66939914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64864150 is a wasteful number, since it uses less digits than its factorization.

64864150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 64864150 is about 8053.8282822519. The cubic root of 64864150 is about 401.7922699271.

The spelling of 64864150 in words is "sixty-four million, eight hundred sixty-four thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 73 130 146 325 365 650 730 949 1367 1825 1898 2734 3650 4745 6835 9490 13670 17771 23725 34175 35542 47450 68350 88855 99791 177710 199582 444275 498955 888550 997910 1297283 2494775 2594566 4989550 6486415 12972830 32432075 64864150