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13672100 = 2252132809
BaseRepresentation
bin110100001001…
…111010100100
3221201121121002
4310021322210
512000001400
61205012432
7224132231
oct64117244
927647532
1013672100
117799062
1246b4118
132aa9100
141b5c788
151300ed5
hexd09ea4

13672100 has 54 divisors (see below), whose sum is σ = 32165910. Its totient is φ = 5041920.

The previous prime is 13672049. The next prime is 13672111. The reversal of 13672100 is 127631.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 5798464 + 7873636 = 2408^2 + 2806^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16496 + ... + 17304.

It is an arithmetic number, because the mean of its divisors is an integer number (595665).

Almost surely, 213672100 is an apocalyptic number.

13672100 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 13672100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16082955).

13672100 is an abundant number, since it is smaller than the sum of its proper divisors (18493810).

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

13672100 is a wasteful number, since it uses less digits than its factorization.

13672100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13672100 is about 3697.5802898653. The cubic root of 13672100 is about 239.1177095636.

Adding to 13672100 its reverse (127631), we get a palindrome (13799731).

The spelling of 13672100 in words is "thirteen million, six hundred seventy-two thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 169 260 325 338 650 676 809 845 1300 1618 1690 3236 3380 4045 4225 8090 8450 10517 16180 16900 20225 21034 40450 42068 52585 80900 105170 136721 210340 262925 273442 525850 546884 683605 1051700 1367210 2734420 3418025 6836050 13672100