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13870467 = 331343919
BaseRepresentation
bin110100111010…
…010110000011
3222002200201000
4310322112003
512022323332
61213143043
7225616452
oct64722603
928080630
1013870467
1179140a6
12478aa83
132b484a0
141bb0b99
15133eb7c
hexd3a583

13870467 has 32 divisors (see below), whose sum is σ = 22668800. Its totient is φ = 8328096.

The previous prime is 13870463. The next prime is 13870477. The reversal of 13870467 is 76407831.

13870467 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13870467 - 22 = 13870463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13870463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14634 + ... + 15552.

It is an arithmetic number, because the mean of its divisors is an integer number (708400).

Almost surely, 213870467 is an apocalyptic number.

13870467 is a deficient number, since it is larger than the sum of its proper divisors (8798333).

13870467 is a wasteful number, since it uses less digits than its factorization.

13870467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 13870467 is about 3724.3075866529. The cubic root of 13870467 is about 240.2686055173.

The spelling of 13870467 in words is "thirteen million, eight hundred seventy thousand, four hundred sixty-seven".

Divisors: 1 3 9 13 27 39 43 117 129 351 387 559 919 1161 1677 2757 5031 8271 11947 15093 24813 35841 39517 107523 118551 322569 355653 513721 1066959 1541163 4623489 13870467