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85208884 = 2221302221
BaseRepresentation
bin1010001010000…
…10111100110100
312221100001121121
411011002330310
5133303141014
612242153324
72053156255
oct505027464
9187301547
1085208884
1144109772
1224652844
1314865277
14b460b2c
157732124
hex5142f34

85208884 has 6 divisors (see below), whose sum is σ = 149115554. Its totient is φ = 42604440.

The previous prime is 85208869. The next prime is 85208899. The reversal of 85208884 is 48880258.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85208869) and next prime (85208899).

It can be written as a sum of positive squares in only one way, i.e., 85155984 + 52900 = 9228^2 + 230^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85208884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651107 + ... + 10651114.

Almost surely, 285208884 is an apocalyptic number.

It is an amenable number.

85208884 is a deficient number, since it is larger than the sum of its proper divisors (63906670).

85208884 is a wasteful number, since it uses less digits than its factorization.

85208884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21302225 (or 21302223 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 85208884 is about 9230.8658315458. The cubic root of 85208884 is about 440.0428401814.

The spelling of 85208884 in words is "eighty-five million, two hundred eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 21302221 42604442 85208884