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13901418 = 2323720873
BaseRepresentation
bin110101000001…
…111001101010
3222011021011100
4311001321222
512024321133
61213542230
7226105626
oct65017152
928137140
1013901418
117935383
1247a4976
132b595bb
141bbc186
151348e13
hexd41e6a

13901418 has 24 divisors (see below), whose sum is σ = 30935268. Its totient is φ = 4508352.

The previous prime is 13901417. The next prime is 13901429. The reversal of 13901418 is 81410931.

13901418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13638249 + 263169 = 3693^2 + 513^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13901391 and 13901400.

It is not an unprimeable number, because it can be changed into a prime (13901413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9771 + ... + 11102.

Almost surely, 213901418 is an apocalyptic number.

13901418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13901418 is an abundant number, since it is smaller than the sum of its proper divisors (17033850).

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

13901418 is a wasteful number, since it uses less digits than its factorization.

13901418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20918 (or 20915 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 13901418 is about 3728.4605402230. The cubic root of 13901418 is about 240.4471870813.

The spelling of 13901418 in words is "thirteen million, nine hundred one thousand, four hundred eighteen".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 20873 41746 62619 125238 187857 375714 772301 1544602 2316903 4633806 6950709 13901418