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65085372 = 223211164357
BaseRepresentation
bin1111100001000…
…1111110111100
311112110200100100
43320101332330
5113130212442
610243001100
71420134162
oct370217674
9145420310
1065085372
1133814670
1219969190
131063a871
148903232
155aa984c
hex3e11fbc

65085372 has 36 divisors (see below), whose sum is σ = 179478936. Its totient is φ = 19722720.

The previous prime is 65085329. The next prime is 65085373. The reversal of 65085372 is 27358056.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×650853722 = 8472211296756768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65085373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81783 + ... + 82574.

It is an arithmetic number, because the mean of its divisors is an integer number (4985526).

Almost surely, 265085372 is an apocalyptic number.

It is an amenable number.

65085372 is an abundant number, since it is smaller than the sum of its proper divisors (114393564).

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

65085372 is a wasteful number, since it uses less digits than its factorization.

65085372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164378 (or 164373 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 65085372 is about 8067.5505576352. The cubic root of 65085372 is about 402.2485282841.

The spelling of 65085372 in words is "sixty-five million, eighty-five thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 164357 328714 493071 657428 986142 1479213 1807927 1972284 2958426 3615854 5423781 5916852 7231708 10847562 16271343 21695124 32542686 65085372