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85102718 = 242551359
BaseRepresentation
bin1010001001010…
…01000001111110
312221010122222112
411010221001332
5133241241333
612240014022
72052234611
oct504510176
9187118875
1085102718
1144046a28
1224601312
1314828b4c
14b434178
157710948
hex512907e

85102718 has 4 divisors (see below), whose sum is σ = 127654080. Its totient is φ = 42551358.

The previous prime is 85102711. The next prime is 85102741. The reversal of 85102718 is 81720158.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×851027182 = 14484945221975048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85102711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21275678 + ... + 21275681.

It is an arithmetic number, because the mean of its divisors is an integer number (31913520).

Almost surely, 285102718 is an apocalyptic number.

85102718 is a deficient number, since it is larger than the sum of its proper divisors (42551362).

85102718 is a wasteful number, since it uses less digits than its factorization.

85102718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42551361.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 85102718 is about 9225.1134410369. The cubic root of 85102718 is about 439.8600071167.

The spelling of 85102718 in words is "eighty-five million, one hundred two thousand, seven hundred eighteen".

Divisors: 1 2 42551359 85102718