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12905058045 = 3511312522983
BaseRepresentation
bin11000000010011001…
…11000111011111101
31020022101010212120210
430001030320323331
5202412143324140
65532320103033
7634541116635
oct140114707375
936271125523
1012905058045
115522629130
122601a64a79
1312a880c529
148a5cd36c5
15507e4ad80
hex301338efd

12905058045 has 32 divisors (see below), whose sum is σ = 23251820544. Its totient is φ = 6055156800.

The previous prime is 12905058013. The next prime is 12905058053. The reversal of 12905058045 is 54085050921.

It is not a de Polignac number, because 12905058045 - 25 = 12905058013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12905057994 and 12905058012.

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, 1256377 + ... + 1266606.

It is an arithmetic number, because the mean of its divisors is an integer number (726619392).

Almost surely, 212905058045 is an apocalyptic number.

12905058045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12905058045 is a deficient number, since it is larger than the sum of its proper divisors (10346762499).

12905058045 is a wasteful number, since it uses less digits than its factorization.

12905058045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523033.

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 12905058045 in words is "twelve billion, nine hundred five million, fifty-eight thousand, forty-five".

Divisors: 1 3 5 11 15 31 33 55 93 155 165 341 465 1023 1705 5115 2522983 7568949 12614915 27752813 37844745 78212473 83258439 138764065 234637419 391062365 416292195 860337203 1173187095 2581011609 4301686015 12905058045