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85199065 = 572434259
BaseRepresentation
bin1010001010000…
…00100011011001
312221022120010221
411011000203121
5133302332230
612242040041
72053115530
oct505004331
9187276127
1085199065
1144102356
1224649021
1314860963
14b45b317
15772e27a
hex51408d9

85199065 has 8 divisors (see below), whose sum is σ = 116844480. Its totient is φ = 58422192.

The previous prime is 85199063. The next prime is 85199083. The reversal of 85199065 is 56099158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85199065 - 21 = 85199063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85199063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217095 + ... + 1217164.

It is an arithmetic number, because the mean of its divisors is an integer number (14605560).

Almost surely, 285199065 is an apocalyptic number.

It is an amenable number.

85199065 is a deficient number, since it is larger than the sum of its proper divisors (31645415).

85199065 is a wasteful number, since it uses less digits than its factorization.

85199065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434271.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 85199065 is about 9230.3339592888. Note that the first 3 decimals coincide. The cubic root of 85199065 is about 440.0259368319.

The spelling of 85199065 in words is "eighty-five million, one hundred ninety-nine thousand, sixty-five".

Divisors: 1 5 7 35 2434259 12171295 17039813 85199065