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82870753 = 711838679
BaseRepresentation
bin1001111000010…
…00000111100001
312202221021022011
410330020013201
5132203331003
612120112521
72024250460
oct474100741
9182837264
1082870753
1142862029
1223905741
1314226c64
14b0129d7
15741e46d
hex4f081e1

82870753 has 4 divisors (see below), whose sum is σ = 94709440. Its totient is φ = 71032068.

The previous prime is 82870741. The next prime is 82870789. The reversal of 82870753 is 35707828.

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 82870753 - 221 = 80773601 is a prime.

It is a super-3 number, since 3×828707533 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (82870793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5919333 + ... + 5919346.

It is an arithmetic number, because the mean of its divisors is an integer number (23677360).

Almost surely, 282870753 is an apocalyptic number.

It is an amenable number.

82870753 is a deficient number, since it is larger than the sum of its proper divisors (11838687).

82870753 is a wasteful number, since it uses less digits than its factorization.

82870753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11838686.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 82870753 is about 9103.3374649081. The cubic root of 82870753 is about 435.9805300202.

The spelling of 82870753 in words is "eighty-two million, eight hundred seventy thousand, seven hundred fifty-three".

Divisors: 1 7 11838679 82870753