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13372424 = 2313711811
BaseRepresentation
bin110011000000…
…110000001000
3221011101111222
4303000300020
511410404144
61154341212
7221443442
oct63006010
927141458
1013372424
11760399a
12458a808
132a028a0
141ac1492
1512922ee
hexcc0c08

13372424 has 32 divisors (see below), whose sum is σ = 27397440. Its totient is φ = 6081600.

The previous prime is 13372363. The next prime is 13372427. The reversal of 13372424 is 42427331.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 13372393 and 13372402.

It is not an unprimeable number, because it can be changed into a prime (13372427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6479 + ... + 8289.

It is an arithmetic number, because the mean of its divisors is an integer number (856170).

Almost surely, 213372424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13372424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13698720).

13372424 is an abundant number, since it is smaller than the sum of its proper divisors (14025016).

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

13372424 is a wasteful number, since it uses less digits than its factorization.

13372424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1897 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 13372424 is about 3656.8325091532. The cubic root of 13372424 is about 237.3577297509.

Adding to 13372424 its reverse (42427331), we get a palindrome (55799755).

The spelling of 13372424 in words is "thirteen million, three hundred seventy-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 71 104 142 284 568 923 1811 1846 3622 3692 7244 7384 14488 23543 47086 94172 128581 188344 257162 514324 1028648 1671553 3343106 6686212 13372424