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82831501 = 97853933
BaseRepresentation
bin1001110111111…
…10100010001101
312202212021110101
410323332202031
5132201102001
612115211101
72024025154
oct473764215
9182767411
1082831501
1142835595
12238a6a91
131421212c
14b00259b
157412a01
hex4efe88d

82831501 has 4 divisors (see below), whose sum is σ = 83685532. Its totient is φ = 81977472.

The previous prime is 82831481. The next prime is 82831519. The reversal of 82831501 is 10513828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 41538025 = 6426^2 + 6445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82831501 is a prime.

It is a super-2 number, since 2×828315012 = 13722115115826002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82831501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82831591) 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, 426870 + ... + 427063.

It is an arithmetic number, because the mean of its divisors is an integer number (20921383).

Almost surely, 282831501 is an apocalyptic number.

It is an amenable number.

82831501 is a deficient number, since it is larger than the sum of its proper divisors (854031).

82831501 is an equidigital number, since it uses as much as digits as its factorization.

82831501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854030.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 82831501 is about 9101.1812969526. The cubic root of 82831501 is about 435.9116846204.

The spelling of 82831501 in words is "eighty-two million, eight hundred thirty-one thousand, five hundred one".

Divisors: 1 97 853933 82831501