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8970520901 = 19472132679
BaseRepresentation
bin10000101101010111…
…10100100101000101
3212011011121200021212
420112223310211011
5121332423132101
64042045221205
7435204112106
oct102653644505
925134550255
108970520901
113893697141
1218a4261805
13acc62b444
146115403ad
153778071bb
hex216af4945

8970520901 has 4 divisors (see below), whose sum is σ = 9442653600. Its totient is φ = 8498388204.

The previous prime is 8970520891. The next prime is 8970520931. The reversal of 8970520901 is 1090250798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8970520901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8970520931) 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, 236066321 + ... + 236066358.

It is an arithmetic number, because the mean of its divisors is an integer number (2360663400).

Almost surely, 28970520901 is an apocalyptic number.

It is an amenable number.

8970520901 is a deficient number, since it is larger than the sum of its proper divisors (472132699).

8970520901 is a wasteful number, since it uses less digits than its factorization.

8970520901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472132698.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 8970520901 is about 94712.8338769356. The cubic root of 8970520901 is about 2077.8102649683.

The spelling of 8970520901 in words is "eight billion, nine hundred seventy million, five hundred twenty thousand, nine hundred one".

Divisors: 1 19 472132679 8970520901