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65471052 = 2235455921
BaseRepresentation
bin1111100111000…
…0001001001100
311120012021101210
43321300021030
5113230033202
610255134420
71423331463
oct371601114
9146167353
1065471052
1133a58409
1219b14410
131074428a
1489a39da
155b33c6c
hex3e7024c

65471052 has 12 divisors (see below), whose sum is σ = 152765816. Its totient is φ = 21823680.

The previous prime is 65471051. The next prime is 65471071. The reversal of 65471052 is 25017456.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (65471051) 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, 2727949 + ... + 2727972.

Almost surely, 265471052 is an apocalyptic number.

It is an amenable number.

65471052 is an abundant number, since it is smaller than the sum of its proper divisors (87294764).

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

65471052 is a wasteful number, since it uses less digits than its factorization.

65471052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455928 (or 5455926 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 65471052 is about 8091.4184170638. The cubic root of 65471052 is about 403.0415061503.

The spelling of 65471052 in words is "sixty-five million, four hundred seventy-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 5455921 10911842 16367763 21823684 32735526 65471052