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13869800 = 235279907
BaseRepresentation
bin110100111010…
…001011101000
3222002122210022
4310322023220
512022313200
61213140012
7225614510
oct64721350
928078708
1013869800
11791364a
12478a608
132b480a9
141bb0840
15133e885
hexd3a2e8

13869800 has 48 divisors (see below), whose sum is σ = 36857760. Its totient is φ = 4754880.

The previous prime is 13869799. The next prime is 13869809. The reversal of 13869800 is 896831.

13869800 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

13869800 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13869809) 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, 3554 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (767870).

Almost surely, 213869800 is an apocalyptic number.

13869800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13869800 is an abundant number, since it is smaller than the sum of its proper divisors (22987960).

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

13869800 is a wasteful number, since it uses less digits than its factorization.

13869800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9930 (or 9921 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 13869800 is about 3724.2180387297. The cubic root of 13869800 is about 240.2647541275.

The spelling of 13869800 in words is "thirteen million, eight hundred sixty-nine thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 9907 19814 39628 49535 69349 79256 99070 138698 198140 247675 277396 346745 396280 495350 554792 693490 990700 1386980 1733725 1981400 2773960 3467450 6934900 13869800