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64470372 = 22314873613
BaseRepresentation
bin1111010111101…
…1110101100100
311111022102201120
43311323311210
5113001022442
610221453540
71411663161
oct365736544
9144272646
1064470372
11334345aa
12197112b0
1310483965
1487c3068
1559d74ec
hex3d7bd64

64470372 has 24 divisors (see below), whose sum is σ = 150573696. Its totient is φ = 21469728.

The previous prime is 64470349. The next prime is 64470377. The reversal of 64470372 is 27307446.

It is not an unprimeable number, because it can be changed into a prime (64470377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16038 + ... + 19650.

It is an arithmetic number, because the mean of its divisors is an integer number (6273904).

Almost surely, 264470372 is an apocalyptic number.

It is an amenable number.

64470372 is an abundant number, since it is smaller than the sum of its proper divisors (86103324).

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

64470372 is a wasteful number, since it uses less digits than its factorization.

64470372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 64470372 is about 8029.3444315212. The cubic root of 64470372 is about 400.9775507071.

The spelling of 64470372 in words is "sixty-four million, four hundred seventy thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 1487 2974 3613 4461 5948 7226 8922 10839 14452 17844 21678 43356 5372531 10745062 16117593 21490124 32235186 64470372