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82975413 = 3196721727
BaseRepresentation
bin1001111001000…
…01101010110101
312210010120212110
410330201222311
5132220203123
612122241233
72025164553
oct474415265
9183116773
1082975413
1142923724
1223956219
13142627a1
14b03cbd3
157440493
hex4f21ab5

82975413 has 16 divisors (see below), whose sum is σ = 118200320. Its totient is φ = 51620976.

The previous prime is 82975393. The next prime is 82975429. The reversal of 82975413 is 31457928.

It is not a de Polignac number, because 82975413 - 29 = 82974901 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 (82975483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7045 + ... + 14682.

It is an arithmetic number, because the mean of its divisors is an integer number (7387520).

Almost surely, 282975413 is an apocalyptic number.

It is an amenable number.

82975413 is a deficient number, since it is larger than the sum of its proper divisors (35224907).

82975413 is a wasteful number, since it uses less digits than its factorization.

82975413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21816.

The product of its digits is 60480, while the sum is 39.

The square root of 82975413 is about 9109.0840922675. The cubic root of 82975413 is about 436.1639905095.

The spelling of 82975413 in words is "eighty-two million, nine hundred seventy-five thousand, four hundred thirteen".

Divisors: 1 3 19 57 67 201 1273 3819 21727 65181 412813 1238439 1455709 4367127 27658471 82975413