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13467940 = 225673397
BaseRepresentation
bin110011011000…
…000100100100
3221100020112121
4303120010210
511421433230
61200355324
7222322063
oct63300444
927306477
1013467940
117669732
124615b44
132a371c5
141b081da
1512b077a
hexcd8124

13467940 has 12 divisors (see below), whose sum is σ = 28282716. Its totient is φ = 5387168.

The previous prime is 13467929. The next prime is 13467947. The reversal of 13467940 is 4976431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 11235904 = 1494^2 + 3352^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13467896 and 13467905.

It is not an unprimeable number, because it can be changed into a prime (13467947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336679 + ... + 336718.

It is an arithmetic number, because the mean of its divisors is an integer number (2356893).

Almost surely, 213467940 is an apocalyptic number.

13467940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13467940 is an abundant number, since it is smaller than the sum of its proper divisors (14814776).

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

13467940 is a wasteful number, since it uses less digits than its factorization.

13467940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673406 (or 673404 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13467940 is about 3669.8692074787. The cubic root of 13467940 is about 237.9215192123.

The spelling of 13467940 in words is "thirteen million, four hundred sixty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 673397 1346794 2693588 3366985 6733970 13467940