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8630938657 = 115233149939
BaseRepresentation
bin10000000100111000…
…11010110000100001
3211021111122010000201
420002130122300201
5120134010014112
63544234545201
7423611524315
oct100234326041
924244563021
108630938657
113729a37a60
12180a598201
13a77181cc3
145bc3c5b45
15357aca257
hex20271ac21

8630938657 has 8 divisors (see below), whose sum is σ = 9417431520. Its totient is φ = 7844756160.

The previous prime is 8630938639. The next prime is 8630938697. The reversal of 8630938657 is 7568390368.

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 8630938657 - 223 = 8622550049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8630938598 and 8630938607.

It is not an unprimeable number, because it can be changed into a prime (8630938697) 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, 17407 + ... + 132532.

It is an arithmetic number, because the mean of its divisors is an integer number (1177178940).

Almost surely, 28630938657 is an apocalyptic number.

It is an amenable number.

8630938657 is a deficient number, since it is larger than the sum of its proper divisors (786492863).

8630938657 is a wasteful number, since it uses less digits than its factorization.

8630938657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155183.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The square root of 8630938657 is about 92902.8452578284. The cubic root of 8630938657 is about 2051.2535388593.

The spelling of 8630938657 in words is "eight billion, six hundred thirty million, nine hundred thirty-eight thousand, six hundred fifty-seven".

Divisors: 1 11 5233 57563 149939 1649329 784630787 8630938657