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85154212 = 221113413631
BaseRepresentation
bin1010001001101…
…01100110100100
312221020021121201
411010311212210
5133244413322
612241052244
72052541003
oct504654644
9187207551
1085154212
1144081690
1224627084
1314846410
14b448c3a
157720d27
hex51359a4

85154212 has 48 divisors (see below), whose sum is σ = 179391744. Its totient is φ = 34848000.

The previous prime is 85154183. The next prime is 85154227. The reversal of 85154212 is 21245158.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21637 + ... + 25267.

It is an arithmetic number, because the mean of its divisors is an integer number (3737328).

Almost surely, 285154212 is an apocalyptic number.

85154212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

85154212 is an abundant number, since it is smaller than the sum of its proper divisors (94237532).

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

85154212 is a wasteful number, since it uses less digits than its factorization.

85154212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700 (or 3698 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 85154212 is about 9227.9039873635. The cubic root of 85154212 is about 439.9487061418.

The spelling of 85154212 in words is "eighty-five million, one hundred fifty-four thousand, two hundred twelve".

Divisors: 1 2 4 11 13 22 26 41 44 52 82 143 164 286 451 533 572 902 1066 1804 2132 3631 5863 7262 11726 14524 23452 39941 47203 79882 94406 148871 159764 188812 297742 519233 595484 1038466 1637581 1935323 2076932 3275162 3870646 6550324 7741292 21288553 42577106 85154212