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85007442 = 23135320563
BaseRepresentation
bin1010001000100…
…01110001010010
312220221211021210
411010101301102
5133230214232
612234000550
72051360052
oct504216122
9186854253
1085007442
1143a91393
1224576156
13147c4680
14b40b562
1576e25cc
hex5111c52

85007442 has 32 divisors (see below), whose sum is σ = 186556608. Its totient is φ = 25661376.

The previous prime is 85007441. The next prime is 85007449. The reversal of 85007442 is 24470058.

It is not an unprimeable number, because it can be changed into a prime (85007441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6148 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (5829894).

Almost surely, 285007442 is an apocalyptic number.

85007442 is an abundant number, since it is smaller than the sum of its proper divisors (101549166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85007442 is a wasteful number, since it uses less digits than its factorization.

85007442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20634.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 85007442 is about 9219.9480475760. The cubic root of 85007442 is about 439.6957986870.

The spelling of 85007442 in words is "eighty-five million, seven thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 39 53 78 106 159 318 689 1378 2067 4134 20563 41126 61689 123378 267319 534638 801957 1089839 1603914 2179678 3269517 6539034 14167907 28335814 42503721 85007442