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13194990 = 2325271541
BaseRepresentation
bin110010010101…
…011011101110
3220211101010100
4302111123232
511334214430
61150451530
7220104234
oct62253356
926741110
1013194990
1174a2656
124503ba6
13296cbb3
141a76954
151259960
hexc956ee

13194990 has 48 divisors (see below), whose sum is σ = 34497216. Its totient is φ = 3499200.

The previous prime is 13194967. The next prime is 13194997. The reversal of 13194990 is 9949131.

It is a super-2 number, since 2×131949902 = 348215522200200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13194997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24120 + ... + 24660.

It is an arithmetic number, because the mean of its divisors is an integer number (718692).

Almost surely, 213194990 is an apocalyptic number.

13194990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13194990 is an abundant number, since it is smaller than the sum of its proper divisors (21302226).

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

13194990 is a wasteful number, since it uses less digits than its factorization.

13194990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 13194990 is about 3632.4908809245. The cubic root of 13194990 is about 236.3032465856.

The spelling of 13194990 in words is "thirteen million, one hundred ninety-four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 271 541 542 813 1082 1355 1623 1626 2439 2705 2710 3246 4065 4869 4878 5410 8115 8130 9738 12195 16230 24345 24390 48690 146611 293222 439833 733055 879666 1319499 1466110 2199165 2638998 4398330 6597495 13194990