Search a number
-
+
12303011232 = 253242718789
BaseRepresentation
bin10110111010101000…
…10000110110100000
31011202102021201121200
423131110100312200
5200144032324412
65352452121200
7613610604261
oct133524206640
934672251550
1012303011232
115243802486
122474306200
131210b78105
14849d76968
154c01769dc
hex2dd510da0

12303011232 has 36 divisors (see below), whose sum is σ = 34986689010. Its totient is φ = 4101003648.

The previous prime is 12303011221. The next prime is 12303011251. The reversal of 12303011232 is 23211030321.

It can be written as a sum of positive squares in only one way, i.e., 9960838416 + 2342172816 = 99804^2 + 48396^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21359107 + ... + 21359682.

Almost surely, 212303011232 is an apocalyptic number.

12303011232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12303011232 is an abundant number, since it is smaller than the sum of its proper divisors (22683677778).

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

12303011232 is a wasteful number, since it uses less digits than its factorization.

12303011232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42718805 (or 42718794 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12303011232 its reverse (23211030321), we get a palindrome (35514041553).

The spelling of 12303011232 in words is "twelve billion, three hundred three million, eleven thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 42718789 85437578 128156367 170875156 256312734 341750312 384469101 512625468 683500624 768938202 1025250936 1367001248 1537876404 2050501872 3075752808 4101003744 6151505616 12303011232