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13149400 = 23521143139
BaseRepresentation
bin110010001010…
…010011011000
3220202001120211
4302022103120
511331240100
61145500504
7216524305
oct62122330
926661524
1013149400
117471380
1244a1734
132955214
141a640ac
15124b1ba
hexc8a4d8

13149400 has 96 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 4636800.

The previous prime is 13149377. The next prime is 13149401. The reversal of 13149400 is 494131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149401) 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, 94531 + ... + 94669.

It is an arithmetic number, because the mean of its divisors is an integer number (358050).

Almost surely, 213149400 is an apocalyptic number.

13149400 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 13149400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17186400).

13149400 is an abundant number, since it is smaller than the sum of its proper divisors (21223400).

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

13149400 is a wasteful number, since it uses less digits than its factorization.

13149400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13149400 is about 3626.2101428351. The cubic root of 13149400 is about 236.0307821574.

The spelling of 13149400 in words is "thirteen million, one hundred forty-nine thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 43 44 50 55 86 88 100 110 139 172 200 215 220 275 278 344 430 440 473 550 556 695 860 946 1075 1100 1112 1390 1529 1720 1892 2150 2200 2365 2780 3058 3475 3784 4300 4730 5560 5977 6116 6950 7645 8600 9460 11825 11954 12232 13900 15290 18920 23650 23908 27800 29885 30580 38225 47300 47816 59770 61160 65747 76450 94600 119540 131494 149425 152900 239080 262988 298850 305800 328735 525976 597700 657470 1195400 1314940 1643675 2629880 3287350 6574700 13149400