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9638680146 = 233151820861
BaseRepresentation
bin10001111101000001…
…01001011001010010
3220212201212200110120
420332200221121102
5124220000231041
64232234211110
7460566300204
oct107640513122
926781780416
109638680146
1140a6869067
121a4bb83a96
13ba7b9ca44
1467618a774
153b62da366
hex23e829652

9638680146 has 16 divisors (see below), whose sum is σ = 19899211008. Its totient is φ = 3109251600.

The previous prime is 9638680133. The next prime is 9638680217. The reversal of 9638680146 is 6410868369.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25910245 + ... + 25910616.

It is an arithmetic number, because the mean of its divisors is an integer number (1243700688).

Almost surely, 29638680146 is an apocalyptic number.

9638680146 is an abundant number, since it is smaller than the sum of its proper divisors (10260530862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9638680146 is a wasteful number, since it uses less digits than its factorization.

9638680146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51820897.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 9638680146 is about 98176.7800755352. The cubic root of 9638680146 is about 2128.1677430156.

The spelling of 9638680146 in words is "nine billion, six hundred thirty-eight million, six hundred eighty thousand, one hundred forty-six".

Divisors: 1 2 3 6 31 62 93 186 51820861 103641722 155462583 310925166 1606446691 3212893382 4819340073 9638680146