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12075915885 = 3511371978037
BaseRepresentation
bin10110011111100011…
…11101101001101101
31011011120222002100220
423033301331221231
5144212413302020
65314140441553
7605152406565
oct131761755155
934146862326
1012075915885
1151375a3380
1224102492b9
1311a5ac4c77
14827b3dda5
154aa269240
hex2cfc7da6d

12075915885 has 32 divisors (see below), whose sum is σ = 21647647872. Its totient is φ = 5696743680.

The previous prime is 12075915877. The next prime is 12075915911. The reversal of 12075915885 is 58851957021.

It is not a de Polignac number, because 12075915885 - 23 = 12075915877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982914 + ... + 995123.

It is an arithmetic number, because the mean of its divisors is an integer number (676488996).

Almost surely, 212075915885 is an apocalyptic number.

12075915885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12075915885 is a deficient number, since it is larger than the sum of its proper divisors (9571731987).

12075915885 is a wasteful number, since it uses less digits than its factorization.

12075915885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978093.

The product of its (nonzero) digits is 1008000, while the sum is 51.

The spelling of 12075915885 in words is "twelve billion, seventy-five million, nine hundred fifteen thousand, eight hundred eighty-five".

Divisors: 1 3 5 11 15 33 37 55 111 165 185 407 555 1221 2035 6105 1978037 5934111 9890185 21758407 29670555 65275221 73187369 108792035 219562107 326376105 365936845 805061059 1097810535 2415183177 4025305295 12075915885