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12304231120 = 245153802889
BaseRepresentation
bin10110111010110001…
…11010101011010000
31011202111120200222201
423131120322223100
5200144340343440
65352534212544
7613624144636
oct133530725320
934674520881
1012304231120
115244465a55
1224747b4154
1312111b443c
1484a1b3356
154c031819a
hex2dd63aad0

12304231120 has 20 divisors (see below), whose sum is σ = 28607337540. Its totient is φ = 4921692416.

The previous prime is 12304231081. The next prime is 12304231129. The reversal of 12304231120 is 2113240321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4462774416 + 7841456704 = 66804^2 + 88552^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304231129) 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, 76901365 + ... + 76901524.

It is an arithmetic number, because the mean of its divisors is an integer number (1430366877).

Almost surely, 212304231120 is an apocalyptic number.

12304231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304231120 is an abundant number, since it is smaller than the sum of its proper divisors (16303106420).

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

12304231120 is a wasteful number, since it uses less digits than its factorization.

12304231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153802902 (or 153802896 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12304231120 its reverse (2113240321), we get a palindrome (14417471441).

The spelling of 12304231120 in words is "twelve billion, three hundred four million, two hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 153802889 307605778 615211556 769014445 1230423112 1538028890 2460846224 3076057780 6152115560 12304231120