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1630797105 = 35715531401
BaseRepresentation
bin110000100110011…
…1111110100110001
311012122122002001210
41201030333310301
511314441001410
6425453350333
755261355340
oct14114776461
94178562053
101630797105
117675a7003
123961983a9
131ccb29802
1411682db57
1598284220
hex6133fd31

1630797105 has 16 divisors (see below), whose sum is σ = 2982029184. Its totient is φ = 745507200.

The previous prime is 1630797073. The next prime is 1630797109. The reversal of 1630797105 is 5017970361.

It is not a de Polignac number, because 1630797105 - 25 = 1630797073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630797109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7765596 + ... + 7765805.

It is an arithmetic number, because the mean of its divisors is an integer number (186376824).

Almost surely, 21630797105 is an apocalyptic number.

1630797105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630797105 is a deficient number, since it is larger than the sum of its proper divisors (1351232079).

1630797105 is a wasteful number, since it uses less digits than its factorization.

1630797105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15531416.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 1630797105 is about 40383.1289649527. The cubic root of 1630797105 is about 1177.0637291837.

The spelling of 1630797105 in words is "one billion, six hundred thirty million, seven hundred ninety-seven thousand, one hundred five".

Divisors: 1 3 5 7 15 21 35 105 15531401 46594203 77657005 108719807 232971015 326159421 543599035 1630797105