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21104796 = 2234493917
BaseRepresentation
bin101000010000…
…0100010011100
31110201020100010
41100200202130
520400323141
62032203220
7344250006
oct120404234
943636303
1021104796
1110a05389
127099510
1344ac25b
142b35376
151cbd416
hex142089c

21104796 has 24 divisors (see below), whose sum is σ = 49366800. Its totient is φ = 7017472.

The previous prime is 21104773. The next prime is 21104819. The reversal of 21104796 is 69740112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21104773) and next prime (21104819).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3430 + ... + 7346.

It is an arithmetic number, because the mean of its divisors is an integer number (2056950).

Almost surely, 221104796 is an apocalyptic number.

It is an amenable number.

21104796 is an abundant number, since it is smaller than the sum of its proper divisors (28262004).

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

21104796 is a wasteful number, since it uses less digits than its factorization.

21104796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373 (or 4371 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 21104796 is about 4593.9956464934. The cubic root of 21104796 is about 276.3505836848.

It can be divided in two parts, 2110479 and 6, that added together give a triangular number (2110485 = T2054).

The spelling of 21104796 in words is "twenty-one million, one hundred four thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 449 898 1347 1796 2694 3917 5388 7834 11751 15668 23502 47004 1758733 3517466 5276199 7034932 10552398 21104796