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65072632 = 2311371983
BaseRepresentation
bin1111100000111…
…0110111111000
311112110000212111
43320032313320
5113124311012
610242422104
71420052062
oct370166770
9145400774
1065072632
1133806039
1219961934
1310634b21
1488dc732
155aa5ba7
hex3e0edf8

65072632 has 16 divisors (see below), whose sum is σ = 123092640. Its totient is φ = 32247936.

The previous prime is 65072599. The next prime is 65072633. The reversal of 65072632 is 23627056.

It is a junction number, because it is equal to n+sod(n) for n = 65072594 and 65072603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65072633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35088 + ... + 36895.

It is an arithmetic number, because the mean of its divisors is an integer number (7693290).

Almost surely, 265072632 is an apocalyptic number.

It is an amenable number.

65072632 is a deficient number, since it is larger than the sum of its proper divisors (58020008).

65072632 is a wasteful number, since it uses less digits than its factorization.

65072632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72102 (or 72098 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 65072632 is about 8066.7609360883. The cubic root of 65072632 is about 402.2222808059. Note that the first 4 decimals are identical.

Adding to 65072632 its reverse (23627056), we get a palindrome (88699688).

The spelling of 65072632 in words is "sixty-five million, seventy-two thousand, six hundred thirty-two".

Divisors: 1 2 4 8 113 226 452 904 71983 143966 287932 575864 8134079 16268158 32536316 65072632