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83210465 = 5131280161
BaseRepresentation
bin1001111010110…
…11000011100001
312210120112022002
410331123003201
5132300213330
612131253345
72030164052
oct475330341
9183515262
1083210465
1142a74288
1223a4a255
1314315780
14b0a0729
157489e45
hex4f5b0e1

83210465 has 8 divisors (see below), whose sum is σ = 107533608. Its totient is φ = 61447680.

The previous prime is 83210453. The next prime is 83210489. The reversal of 83210465 is 56401238.

It can be written as a sum of positive squares in 4 ways, for example, as 891136 + 82319329 = 944^2 + 9073^2 .

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

It is not a de Polignac number, because 83210465 - 26 = 83210401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640016 + ... + 640145.

It is an arithmetic number, because the mean of its divisors is an integer number (13441701).

Almost surely, 283210465 is an apocalyptic number.

It is an amenable number.

83210465 is a deficient number, since it is larger than the sum of its proper divisors (24323143).

83210465 is a wasteful number, since it uses less digits than its factorization.

83210465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280179.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 83210465 is about 9121.9770335164. The cubic root of 83210465 is about 436.5754560252.

The spelling of 83210465 in words is "eighty-three million, two hundred ten thousand, four hundred sixty-five".

Divisors: 1 5 13 65 1280161 6400805 16642093 83210465