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10438900 = 2252139751
BaseRepresentation
bin100111110100…
…100011110100
3201122100110221
4213310203310
510133021100
61011424124
7154505053
oct47644364
921570427
1010438900
11598a99a
1235b5044
132216584
14155a39a
15db301a
hex9f48f4

10438900 has 36 divisors (see below), whose sum is σ = 22845760. Its totient is φ = 4140000.

The previous prime is 10438891. The next prime is 10438913. The reversal of 10438900 is 983401.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13525 + ... + 14275.

Almost surely, 210438900 is an apocalyptic number.

10438900 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 10438900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11422880).

10438900 is an abundant number, since it is smaller than the sum of its proper divisors (12406860).

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

10438900 is a wasteful number, since it uses less digits than its factorization.

10438900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10438900 is about 3230.9286590700. The cubic root of 10438900 is about 218.5503866120.

The spelling of 10438900 in words is "ten million, four hundred thirty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 139 278 556 695 751 1390 1502 2780 3004 3475 3755 6950 7510 13900 15020 18775 37550 75100 104389 208778 417556 521945 1043890 2087780 2609725 5219450 10438900