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32065813 = 134160161
BaseRepresentation
bin111101001010…
…0100100010101
32020100010000201
41322110210111
531202101223
63103140501
7536361223
oct172244425
966303021
1032065813
111711157a
12a8a4731
136849370
144389b13
152c35ead
hex1e94915

32065813 has 8 divisors (see below), whose sum is σ = 35375256. Its totient is φ = 28876800.

The previous prime is 32065769. The next prime is 32065819. The reversal of 32065813 is 31856023.

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 30724849 = 1158^2 + 5543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32065813 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 (32065819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29548 + ... + 30613.

It is an arithmetic number, because the mean of its divisors is an integer number (4421907).

Almost surely, 232065813 is an apocalyptic number.

It is an amenable number.

32065813 is a deficient number, since it is larger than the sum of its proper divisors (3309443).

32065813 is a wasteful number, since it uses less digits than its factorization.

32065813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60215.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 32065813 is about 5662.6683639429. The cubic root of 32065813 is about 317.6977105737.

The spelling of 32065813 in words is "thirty-two million, sixty-five thousand, eight hundred thirteen".

Divisors: 1 13 41 533 60161 782093 2466601 32065813