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8925690397 = 13686591569
BaseRepresentation
bin10000101000000001…
…10011101000011101
3212001001021001101211
420110000303220131
5121234434043042
64033404304421
7434121054661
oct102400635035
925031231354
108925690397
113870357338
121891242111
13ac3263010
146095d08a1
153738ee017
hex214033a1d

8925690397 has 4 divisors (see below), whose sum is σ = 9612281980. Its totient is φ = 8239098816.

The previous prime is 8925690349. The next prime is 8925690413. The reversal of 8925690397 is 7930965298.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3922391641 + 5003298756 = 62629^2 + 70734^2 .

It is a de Polignac number, because none of the positive numbers 2k-8925690397 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 (8925690997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343295772 + ... + 343295797.

It is an arithmetic number, because the mean of its divisors is an integer number (2403070495).

Almost surely, 28925690397 is an apocalyptic number.

It is an amenable number.

8925690397 is a deficient number, since it is larger than the sum of its proper divisors (686591583).

8925690397 is a wasteful number, since it uses less digits than its factorization.

8925690397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686591582.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The square root of 8925690397 is about 94475.8720361977. The cubic root of 8925690397 is about 2074.3431721431.

The spelling of 8925690397 in words is "eight billion, nine hundred twenty-five million, six hundred ninety thousand, three hundred ninety-seven".

Divisors: 1 13 686591569 8925690397