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13469140 = 225673457
BaseRepresentation
bin110011011000…
…010111010100
3221100022012001
4303120113110
511422003030
61200405044
7222325426
oct63302724
927308161
1013469140
11766a623
124616784
132a37909
141b08816
1512b0cca
hexcd85d4

13469140 has 12 divisors (see below), whose sum is σ = 28285236. Its totient is φ = 5387648.

The previous prime is 13469123. The next prime is 13469143. The reversal of 13469140 is 4196431.

13469140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 9217296 = 2062^2 + 3036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13469099 and 13469108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13469143) 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, 336709 + ... + 336748.

It is an arithmetic number, because the mean of its divisors is an integer number (2357103).

Almost surely, 213469140 is an apocalyptic number.

13469140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13469140 is an abundant number, since it is smaller than the sum of its proper divisors (14816096).

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

13469140 is a wasteful number, since it uses less digits than its factorization.

13469140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673466 (or 673464 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13469140 is about 3670.0326974020. The cubic root of 13469140 is about 237.9285853101.

The spelling of 13469140 in words is "thirteen million, four hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 673457 1346914 2693828 3367285 6734570 13469140