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12153340 = 225607667
BaseRepresentation
bin101110010111…
…000111111100
3211212110020201
4232113013330
511102401330
61112253244
7205205323
oct56270774
924773221
1012153340
116950a91
1240a1224
132696a34
1418850ba
151100eca
hexb971fc

12153340 has 12 divisors (see below), whose sum is σ = 25522056. Its totient is φ = 4861328.

The previous prime is 12153313. The next prime is 12153341. The reversal of 12153340 is 4335121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153341) 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, 303814 + ... + 303853.

It is an arithmetic number, because the mean of its divisors is an integer number (2126838).

Almost surely, 212153340 is an apocalyptic number.

12153340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12153340 is an abundant number, since it is smaller than the sum of its proper divisors (13368716).

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

12153340 is a wasteful number, since it uses less digits than its factorization.

12153340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607676 (or 607674 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12153340 is about 3486.1640810495. The cubic root of 12153340 is about 229.9138934136.

Adding to 12153340 its reverse (4335121), we get a palindrome (16488461).

The spelling of 12153340 in words is "twelve million, one hundred fifty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 607667 1215334 2430668 3038335 6076670 12153340