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12100309995 = 351229656377
BaseRepresentation
bin10110100010011110…
…00001001111101011
31011020021212102210110
423101033001033223
5144240134404440
65320411345403
7605566636464
oct132117011753
934207772713
1012100309995
11514a344aa4
122418452263
1311aab86457
1482b08dd6b
154ac487080
hex2d13c13eb

12100309995 has 16 divisors (see below), whose sum is σ = 19376278560. Its totient is φ = 6448237824.

The previous prime is 12100309987. The next prime is 12100310029. The reversal of 12100309995 is 59990300121.

It is not a de Polignac number, because 12100309995 - 23 = 12100309987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309754 + ... + 346623.

It is an arithmetic number, because the mean of its divisors is an integer number (1211017410).

Almost surely, 212100309995 is an apocalyptic number.

12100309995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12100309995 is a deficient number, since it is larger than the sum of its proper divisors (7275968565).

12100309995 is a wasteful number, since it uses less digits than its factorization.

12100309995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657614.

The product of its (nonzero) digits is 21870, while the sum is 39.

The spelling of 12100309995 in words is "twelve billion, one hundred million, three hundred nine thousand, nine hundred ninety-five".

Divisors: 1 3 5 15 1229 3687 6145 18435 656377 1969131 3281885 9845655 806687333 2420061999 4033436665 12100309995