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85898053 = 3714915581
BaseRepresentation
bin1010001111010…
…11001101000101
312222122001222101
411013223031011
5133442214203
612305032101
72062056433
oct507531505
9188561871
1085898053
114453a52a
1224925631
1314a46b67
14b59dd53
15781b41d
hex51eb345

85898053 has 8 divisors (see below), whose sum is σ = 88817400. Its totient is φ = 83010240.

The previous prime is 85898027. The next prime is 85898063. The reversal of 85898053 is 35089858.

It can be written as a sum of positive squares in 4 ways, for example, as 7628644 + 78269409 = 2762^2 + 8847^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-85898053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85897994 and 85898012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85898023) 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, 2278 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (11102175).

Almost surely, 285898053 is an apocalyptic number.

It is an amenable number.

85898053 is a deficient number, since it is larger than the sum of its proper divisors (2919347).

85898053 is a wasteful number, since it uses less digits than its factorization.

85898053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15767.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 85898053 is about 9268.1202517015. The cubic root of 85898053 is about 441.2260107816.

The spelling of 85898053 in words is "eighty-five million, eight hundred ninety-eight thousand, fifty-three".

Divisors: 1 37 149 5513 15581 576497 2321569 85898053