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65285472 = 253797151
BaseRepresentation
bin1111100100001…
…0110101100000
311112211211211110
43321002311200
5113203113342
610251143320
71421626440
oct371026540
9145754743
1065285472
1133940a3a
1219a44b40
13106aa975
148956120
155ae8c9c
hex3e42d60

65285472 has 48 divisors (see below), whose sum is σ = 195858432. Its totient is φ = 18652800.

The previous prime is 65285461. The next prime is 65285483. The reversal of 65285472 is 27458256.

It is an interprime number because it is at equal distance from previous prime (65285461) and next prime (65285483).

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 65285472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47904 + ... + 49247.

It is an arithmetic number, because the mean of its divisors is an integer number (4080384).

Almost surely, 265285472 is an apocalyptic number.

It is an amenable number.

65285472 is an abundant number, since it is smaller than the sum of its proper divisors (130572960).

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

65285472 is a wasteful number, since it uses less digits than its factorization.

65285472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97171 (or 97163 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 65285472 is about 8079.9425740534. The cubic root of 65285472 is about 402.6603339988.

The spelling of 65285472 in words is "sixty-five million, two hundred eighty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 97151 194302 291453 388604 582906 680057 777208 1165812 1360114 1554416 2040171 2331624 2720228 3108832 4080342 4663248 5440456 8160684 9326496 10880912 16321368 21761824 32642736 65285472