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12432162530 = 253373689069
BaseRepresentation
bin10111001010000001…
…11011111011100010
31012002102022021220002
423211000323323202
5200430113200110
65413344220002
7620036431544
oct134500737342
935072267802
1012432162530
1152aa6a4797
1224ab60a602
1312318574b8
1485d195694
154cb688aa5
hex2e503bee2

12432162530 has 16 divisors (see below), whose sum is σ = 22444301880. Its totient is φ = 4958107392.

The previous prime is 12432162527. The next prime is 12432162539. The reversal of 12432162530 is 3526123421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5330898169 + 7101264361 = 73013^2 + 84269^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12432162493 and 12432162502.

It is not an unprimeable number, because it can be changed into a prime (12432162539) 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, 1841165 + ... + 1847904.

Almost surely, 212432162530 is an apocalyptic number.

12432162530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12432162530 is a deficient number, since it is larger than the sum of its proper divisors (10012139350).

12432162530 is a wasteful number, since it uses less digits than its factorization.

12432162530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689413.

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

Adding to 12432162530 its reverse (3526123421), we get a palindrome (15958285951).

The spelling of 12432162530 in words is "twelve billion, four hundred thirty-two million, one hundred sixty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 337 674 1685 3370 3689069 7378138 18445345 36890690 1243216253 2486432506 6216081265 12432162530