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85909254 = 2321796571
BaseRepresentation
bin1010001111011…
…01111100000110
312222122122100020
411013231330012
5133443044004
612305200010
72062134204
oct507557406
9188578306
1085909254
1144547992
1224930006
1314a4bca2
14b5a4074
15781e8d9
hex51edf06

85909254 has 16 divisors (see below), whose sum is σ = 171923520. Its totient is φ = 28618920.

The previous prime is 85909249. The next prime is 85909273. The reversal of 85909254 is 45290958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9789 + ... + 16359.

It is an arithmetic number, because the mean of its divisors is an integer number (10745220).

Almost surely, 285909254 is an apocalyptic number.

85909254 is an abundant number, since it is smaller than the sum of its proper divisors (86014266).

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

85909254 is a wasteful number, since it uses less digits than its factorization.

85909254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 85909254 is about 9268.7245077195. The cubic root of 85909254 is about 441.2451883903.

The spelling of 85909254 in words is "eighty-five million, nine hundred nine thousand, two hundred fifty-four".

Divisors: 1 2 3 6 2179 4358 6537 6571 13074 13142 19713 39426 14318209 28636418 42954627 85909254