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13398430 = 251339843
BaseRepresentation
bin110011000111…
…000110011110
3221012201012011
4303013012132
511412222210
61155101434
7221612323
oct63070636
927181164
1013398430
117621491
1245a187a
132a11686
141acab4a
151299d8a
hexcc719e

13398430 has 8 divisors (see below), whose sum is σ = 24117192. Its totient is φ = 5359368.

The previous prime is 13398421. The next prime is 13398449. The reversal of 13398430 is 3489331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13398392 and 13398401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669912 + ... + 669931.

It is an arithmetic number, because the mean of its divisors is an integer number (3014649).

Almost surely, 213398430 is an apocalyptic number.

13398430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13398430 is a deficient number, since it is larger than the sum of its proper divisors (10718762).

13398430 is a wasteful number, since it uses less digits than its factorization.

13398430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339850.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13398430 is about 3660.3865916048. The cubic root of 13398430 is about 237.5114971350.

Subtracting from 13398430 its reverse (3489331), we obtain a palindrome (9909099).

The spelling of 13398430 in words is "thirteen million, three hundred ninety-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 1339843 2679686 6699215 13398430