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85233261 = 328411087
BaseRepresentation
bin1010001010010…
…00111001101101
312221101022001110
411011020321231
5133304431021
612242502233
72053320321
oct505107155
9187338043
1085233261
1144126013
1224664979
13148733a9
14b469981
157739476
hex5148e6d

85233261 has 4 divisors (see below), whose sum is σ = 113644352. Its totient is φ = 56822172.

The previous prime is 85233251. The next prime is 85233277. The reversal of 85233261 is 16233258.

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 not a de Polignac number, because 85233261 - 213 = 85225069 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 (85233251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14205541 + ... + 14205546.

It is an arithmetic number, because the mean of its divisors is an integer number (28411088).

Almost surely, 285233261 is an apocalyptic number.

It is an amenable number.

85233261 is a deficient number, since it is larger than the sum of its proper divisors (28411091).

85233261 is a wasteful number, since it uses less digits than its factorization.

85233261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28411090.

The product of its digits is 8640, while the sum is 30.

The square root of 85233261 is about 9232.1861441373. The cubic root of 85233261 is about 440.0847994272.

The spelling of 85233261 in words is "eighty-five million, two hundred thirty-three thousand, two hundred sixty-one".

Divisors: 1 3 28411087 85233261