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15334420 = 225766721
BaseRepresentation
bin111010011111…
…110000010100
31001212001212111
4322133300110
512411200140
61304400404
7244224523
oct72376024
931761774
1015334420
118723a82
125176104
13323b92a
1420724ba
15152d7ea
hexe9fc14

15334420 has 12 divisors (see below), whose sum is σ = 32202324. Its totient is φ = 6133760.

The previous prime is 15334411. The next prime is 15334427. The reversal of 15334420 is 2443351.

It can be written as a sum of positive squares in 2 ways, for example, as 10163344 + 5171076 = 3188^2 + 2274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15334391 and 15334400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15334427) by changing a digit.

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, 383341 + ... + 383380.

It is an arithmetic number, because the mean of its divisors is an integer number (2683527).

Almost surely, 215334420 is an apocalyptic number.

15334420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15334420 is an abundant number, since it is smaller than the sum of its proper divisors (16867904).

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

15334420 is a wasteful number, since it uses less digits than its factorization.

15334420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766730 (or 766728 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 15334420 is about 3915.9187938465. The cubic root of 15334420 is about 248.4405324709.

Adding to 15334420 its reverse (2443351), we get a palindrome (17777771).

The spelling of 15334420 in words is "fifteen million, three hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 766721 1533442 3066884 3833605 7667210 15334420