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12153326420 = 2253111953911
BaseRepresentation
bin10110101000110010…
…10000101101010100
31011100222121221122202
423110121100231110
5144342222421140
65325543544032
7610112366354
oct132431205524
934328557582
1012153326420
115177266024
12243215b018
1311b8b59811
14834130b64
154b1e5a915
hex2d4650b54

12153326420 has 24 divisors (see below), whose sum is σ = 25604062848. Its totient is φ = 4845696800.

The previous prime is 12153326387. The next prime is 12153326429. The reversal of 12153326420 is 2462335121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153326429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970736 + ... + 983175.

It is an arithmetic number, because the mean of its divisors is an integer number (1066835952).

Almost surely, 212153326420 is an apocalyptic number.

12153326420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12153326420 is an abundant number, since it is smaller than the sum of its proper divisors (13450736428).

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

12153326420 is a wasteful number, since it uses less digits than its factorization.

12153326420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954231 (or 1954229 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 12153326420 in words is "twelve billion, one hundred fifty-three million, three hundred twenty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 311 622 1244 1555 3110 6220 1953911 3907822 7815644 9769555 19539110 39078220 607666321 1215332642 2430665284 3038331605 6076663210 12153326420