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64885152 = 2531935573
BaseRepresentation
bin1111011110000…
…1000110100000
311112002111200210
43313201012200
5113102311102
610234414120
71415341353
oct367410640
9145074623
1064885152
11336981a2
1219891340
131059a6a7
14889029a
155a6a36c
hex3de11a0

64885152 has 48 divisors (see below), whose sum is σ = 179292960. Its totient is φ = 20489472.

The previous prime is 64885129. The next prime is 64885157. The reversal of 64885152 is 25158846.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 64885152.

It is not an unprimeable number, because it can be changed into a prime (64885157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15963 + ... + 19610.

It is an arithmetic number, because the mean of its divisors is an integer number (3735270).

Almost surely, 264885152 is an apocalyptic number.

It is an amenable number.

64885152 is an abundant number, since it is smaller than the sum of its proper divisors (114407808).

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

64885152 is a wasteful number, since it uses less digits than its factorization.

64885152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35605 (or 35597 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 64885152 is about 8055.1320287131. The cubic root of 64885152 is about 401.8356299376.

The spelling of 64885152 in words is "sixty-four million, eight hundred eighty-five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 76 96 114 152 228 304 456 608 912 1824 35573 71146 106719 142292 213438 284584 426876 569168 675887 853752 1138336 1351774 1707504 2027661 2703548 3415008 4055322 5407096 8110644 10814192 16221288 21628384 32442576 64885152