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12900965190 = 2352318697051
BaseRepresentation
bin11000000001111010…
…10001101101000110
31020022002102221020120
430000331101231012
5202410121341230
65532052242410
7634461252261
oct140075215506
936262387216
1012900965190
115520293103
122600610406
1312a7a08619
148a5549cd8
155078dd310
hex300f51b46

12900965190 has 32 divisors (see below), whose sum is σ = 32308505856. Its totient is φ = 3290680800.

The previous prime is 12900965141. The next prime is 12900965197. The reversal of 12900965190 is 9156900921.

It is a happy number.

It is a super-2 number, since 2×129009651902 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12900965197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9347836 + ... + 9349215.

It is an arithmetic number, because the mean of its divisors is an integer number (1009640808).

Almost surely, 212900965190 is an apocalyptic number.

12900965190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12900965190 is an abundant number, since it is smaller than the sum of its proper divisors (19407540666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12900965190 is a wasteful number, since it uses less digits than its factorization.

12900965190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18697084.

The product of its (nonzero) digits is 43740, while the sum is 42.

The spelling of 12900965190 in words is "twelve billion, nine hundred million, nine hundred sixty-five thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 18697051 37394102 56091153 93485255 112182306 186970510 280455765 430032173 560911530 860064346 1290096519 2150160865 2580193038 4300321730 6450482595 12900965190