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82053497 = 312646887
BaseRepresentation
bin1001110010000…
…00100101111001
312201101202020102
410321000211321
5132001202442
612050405145
72014305011
oct471004571
9181352212
1082053497
1142354009
12235907b5
1313ccbc86
14ac7cc41
15730c232
hex4e40979

82053497 has 4 divisors (see below), whose sum is σ = 84700416. Its totient is φ = 79406580.

The previous prime is 82053473. The next prime is 82053523. The reversal of 82053497 is 79435028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82053497 - 210 = 82052473 is a prime.

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 82053497.

It is not an unprimeable number, because it can be changed into a prime (82053437) 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, 1323413 + ... + 1323474.

It is an arithmetic number, because the mean of its divisors is an integer number (21175104).

Almost surely, 282053497 is an apocalyptic number.

It is an amenable number.

82053497 is a deficient number, since it is larger than the sum of its proper divisors (2646919).

82053497 is a wasteful number, since it uses less digits than its factorization.

82053497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646918.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 82053497 is about 9058.3385341905. The cubic root of 82053497 is about 434.5426063823.

The spelling of 82053497 in words is "eighty-two million, fifty-three thousand, four hundred ninety-seven".

Divisors: 1 31 2646887 82053497