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85107533 = 712158219
BaseRepresentation
bin1010001001010…
…10001101001101
312221010220120212
411010222031031
5133241420113
612240052205
72052254630
oct504521515
9187126525
1085107533
114404a605
1224604065
131482b0b4
14b435c17
1577120a8
hex512a34d

85107533 has 4 divisors (see below), whose sum is σ = 97265760. Its totient is φ = 72949308.

The previous prime is 85107469. The next prime is 85107541. The reversal of 85107533 is 33570158.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33570158 = 216785079.

It is a cyclic number.

It is not a de Polignac number, because 85107533 - 26 = 85107469 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 85107533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85107563) 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, 6079103 + ... + 6079116.

It is an arithmetic number, because the mean of its divisors is an integer number (24316440).

Almost surely, 285107533 is an apocalyptic number.

It is an amenable number.

85107533 is a deficient number, since it is larger than the sum of its proper divisors (12158227).

85107533 is a wasteful number, since it uses less digits than its factorization.

85107533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158226.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 85107533 is about 9225.3744097462. The cubic root of 85107533 is about 439.8683025274.

The spelling of 85107533 in words is "eighty-five million, one hundred seven thousand, five hundred thirty-three".

Divisors: 1 7 12158219 85107533