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13918100 = 2252759337
BaseRepresentation
bin110101000101…
…111110010100
3222012010001012
4311011332110
512030334400
61214151352
7226205360
oct65057624
928163035
1013918100
117946969
1247b2558
132b64081
141bc42a0
15134dd35
hexd45f94

13918100 has 72 divisors (see below), whose sum is σ = 35206080. Its totient is φ = 4677120.

The previous prime is 13918067. The next prime is 13918109. The reversal of 13918100 is 181931.

It is a super-2 number, since 2×139181002 = 387427015220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41132 + ... + 41468.

Almost surely, 213918100 is an apocalyptic number.

13918100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13918100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17603040).

13918100 is an abundant number, since it is smaller than the sum of its proper divisors (21287980).

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

13918100 is a wasteful number, since it uses less digits than its factorization.

13918100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 13918100 is about 3730.6969858191. The cubic root of 13918100 is about 240.5433292293.

The spelling of 13918100 in words is "thirteen million, nine hundred eighteen thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 59 70 100 118 140 175 236 295 337 350 413 590 674 700 826 1180 1348 1475 1652 1685 2065 2359 2950 3370 4130 4718 5900 6740 8260 8425 9436 10325 11795 16850 19883 20650 23590 33700 39766 41300 47180 58975 79532 99415 117950 139181 198830 235900 278362 397660 497075 556724 695905 994150 1391810 1988300 2783620 3479525 6959050 13918100