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65013053 = 721326797
BaseRepresentation
bin1111100000000…
…0010100111101
311112100000010212
43320000110331
5113120404203
610241242205
71416413300
oct370002475
9145300125
1065013053
11337752a6
1219933365
1310613981
1488c4b37
155a931d8
hex3e0053d

65013053 has 6 divisors (see below), whose sum is σ = 75627486. Its totient is φ = 55725432.

The previous prime is 65013031. The next prime is 65013061. The reversal of 65013053 is 35031056.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 24078649 = 6398^2 + 4907^2 .

It is not a de Polignac number, because 65013053 - 216 = 64947517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65013023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 663350 + ... + 663447.

It is an arithmetic number, because the mean of its divisors is an integer number (12604581).

Almost surely, 265013053 is an apocalyptic number.

It is an amenable number.

65013053 is a deficient number, since it is larger than the sum of its proper divisors (10614433).

65013053 is a wasteful number, since it uses less digits than its factorization.

65013053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326811 (or 1326804 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 65013053 is about 8063.0672203573. The cubic root of 65013053 is about 402.0994881772.

The spelling of 65013053 in words is "sixty-five million, thirteen thousand, fifty-three".

Divisors: 1 7 49 1326797 9287579 65013053