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85076172 = 223223372777
BaseRepresentation
bin1010001001000…
…10100011001100
312221002022120100
411010202203030
5133234414142
612235251100
72052064326
oct504424314
9187068510
1085076172
1144028a95
12245a9a90
1314819a3c
14b428616
157707b4c
hex51228cc

85076172 has 72 divisors (see below), whose sum is σ = 230551776. Its totient is φ = 26383104.

The previous prime is 85076161. The next prime is 85076191. The reversal of 85076172 is 27167058.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29248 + ... + 32024.

It is an arithmetic number, because the mean of its divisors is an integer number (3202108).

Almost surely, 285076172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85076172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115275888).

85076172 is an abundant number, since it is smaller than the sum of its proper divisors (145475604).

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

85076172 is a wasteful number, since it uses less digits than its factorization.

85076172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 85076172 is about 9223.6745389243. The cubic root of 85076172 is about 439.8142673396.

The spelling of 85076172 in words is "eighty-five million, seventy-six thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 23 36 37 46 69 74 92 111 138 148 207 222 276 333 414 444 666 828 851 1332 1702 2553 2777 3404 5106 5554 7659 8331 10212 11108 15318 16662 24993 30636 33324 49986 63871 99972 102749 127742 191613 205498 255484 308247 383226 410996 574839 616494 766452 924741 1149678 1232988 1849482 2299356 2363227 3698964 4726454 7089681 9452908 14179362 21269043 28358724 42538086 85076172