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85154844 = 22371891123
BaseRepresentation
bin1010001001101…
…01110000011100
312221020022111010
411010311300130
5133244423334
612241055220
72052542565
oct504656034
9187208433
1085154844
1144082105
1224627510
13148467a8
14b44916c
1577210e9
hex5135c1c

85154844 has 48 divisors (see below), whose sum is σ = 203938560. Its totient is φ = 27646080.

The previous prime is 85154813. The next prime is 85154851. The reversal of 85154844 is 44845158.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 75267 + ... + 76389.

It is an arithmetic number, because the mean of its divisors is an integer number (4248720).

Almost surely, 285154844 is an apocalyptic number.

It is an amenable number.

85154844 is an abundant number, since it is smaller than the sum of its proper divisors (118783716).

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

85154844 is a wasteful number, since it uses less digits than its factorization.

85154844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1288 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

The square root of 85154844 is about 9227.9382312627. The cubic root of 85154844 is about 439.9497945471.

The spelling of 85154844 in words is "eighty-five million, one hundred fifty-four thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 71 89 142 178 213 267 284 356 426 534 852 1068 1123 2246 3369 4492 6319 6738 12638 13476 18957 25276 37914 75828 79733 99947 159466 199894 239199 299841 318932 399788 478398 599682 956796 1199364 7096237 14192474 21288711 28384948 42577422 85154844