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1630792838 = 21965512
BaseRepresentation
bin110000100110011…
…1110110010000110
311012122121212012202
41201030332302012
511314440332323
6425453314502
755261340033
oct14114766206
94178555182
101630792838
117675a3884
12396195a32
131ccb2789c
1411682c38a
1598282d28
hex6133ec86

1630792838 has 12 divisors (see below), whose sum is σ = 2575329180. Its totient is φ = 772362900.

The previous prime is 1630792829. The next prime is 1630792853. The reversal of 1630792838 is 8382970361.

It is a junction number, because it is equal to n+sod(n) for n = 1630792792 and 1630792801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245663 + ... + 252213.

It is an arithmetic number, because the mean of its divisors is an integer number (214610765).

Almost surely, 21630792838 is an apocalyptic number.

1630792838 is a deficient number, since it is larger than the sum of its proper divisors (944536342).

1630792838 is an frugal number, since it uses more digits than its factorization.

1630792838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123 (or 6572 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1630792838 is about 40383.0761334498. The cubic root of 1630792838 is about 1177.0627025824.

The spelling of 1630792838 in words is "one billion, six hundred thirty million, seven hundred ninety-two thousand, eight hundred thirty-eight".

Divisors: 1 2 19 38 6551 13102 124469 248938 42915601 85831202 815396419 1630792838