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85189052 = 22131638251
BaseRepresentation
bin1010001001111…
…10000110111100
312221022001102002
411010332012330
5133302022202
612241521432
72053044404
oct504760674
9187261362
1085189052
11440a5883
1224643278
1314859230
14b457804
15772b302
hex513e1bc

85189052 has 12 divisors (see below), whose sum is σ = 160548696. Its totient is φ = 39318000.

The previous prime is 85189043. The next prime is 85189061. The reversal of 85189052 is 25098158.

It is an interprime number because it is at equal distance from previous prime (85189043) and next prime (85189061).

It is a junction number, because it is equal to n+sod(n) for n = 85188997 and 85189015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819074 + ... + 819177.

It is an arithmetic number, because the mean of its divisors is an integer number (13379058).

Almost surely, 285189052 is an apocalyptic number.

It is an amenable number.

85189052 is a deficient number, since it is larger than the sum of its proper divisors (75359644).

85189052 is a wasteful number, since it uses less digits than its factorization.

85189052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638268 (or 1638266 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 85189052 is about 9229.7915469419. The cubic root of 85189052 is about 440.0086981752.

The spelling of 85189052 in words is "eighty-five million, one hundred eighty-nine thousand, fifty-two".

Divisors: 1 2 4 13 26 52 1638251 3276502 6553004 21297263 42594526 85189052