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13830472 = 231728809
BaseRepresentation
bin110100110000…
…100101001000
3222000122211201
4310300211020
512020033342
61212233544
7225362035
oct64604510
928018751
1013830472
117897047
12476b8b4
132b33216
141ba038c
151332db7
hexd30948

13830472 has 8 divisors (see below), whose sum is σ = 25932150. Its totient is φ = 6915232.

The previous prime is 13830457. The next prime is 13830473. The reversal of 13830472 is 27403831.

It can be written as a sum of positive squares in only one way, i.e., 8964036 + 4866436 = 2994^2 + 2206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13830472.

It is not an unprimeable number, because it can be changed into a prime (13830473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864397 + ... + 864412.

Almost surely, 213830472 is an apocalyptic number.

It is an amenable number.

13830472 is a deficient number, since it is larger than the sum of its proper divisors (12101678).

13830472 is a wasteful number, since it uses less digits than its factorization.

13830472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728815 (or 1728811 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 13830472 is about 3718.9342559395. The cubic root of 13830472 is about 240.0374478603.

The spelling of 13830472 in words is "thirteen million, eight hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 1728809 3457618 6915236 13830472