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8901306157 = 55715980801
BaseRepresentation
bin10000100101000111…
…10010011100101101
3211222100101012111211
420102203302130231
5121212213244112
64031133514421
7433403565622
oct102243623455
924870335454
108901306157
113858612077
121885042a11
13abb1a6183
14606284349
153716d40a7
hex2128f272d

8901306157 has 4 divisors (see below), whose sum is σ = 8917287516. Its totient is φ = 8885324800.

The previous prime is 8901306151. The next prime is 8901306209. The reversal of 8901306157 is 7516031098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7516031098 = 23758015549.

It can be written as a sum of positive squares in 2 ways, for example, as 4862830756 + 4038475401 = 69734^2 + 63549^2 .

It is a cyclic number.

It is not a de Polignac number, because 8901306157 - 23 = 8901306149 is a prime.

It is a super-2 number, since 2×89013061572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8901306151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7989844 + ... + 7990957.

It is an arithmetic number, because the mean of its divisors is an integer number (2229321879).

Almost surely, 28901306157 is an apocalyptic number.

It is an amenable number.

8901306157 is a deficient number, since it is larger than the sum of its proper divisors (15981359).

8901306157 is a wasteful number, since it uses less digits than its factorization.

8901306157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15981358.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 8901306157 is about 94346.7336848499. The cubic root of 8901306157 is about 2072.4524719726.

The spelling of 8901306157 in words is "eight billion, nine hundred one million, three hundred six thousand, one hundred fifty-seven".

Divisors: 1 557 15980801 8901306157