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12404132413 = 61203346433
BaseRepresentation
bin10111000110101100…
…00000101000111101
31012000110120012210121
423203112000220331
5200400424214123
65410503334541
7616246246231
oct134326005075
935013505717
1012404132413
11529589a302
1224a2151451
131228ac202a
1485957a5c1
154c8e9d75d
hex2e3580a3d

12404132413 has 4 divisors (see below), whose sum is σ = 12607478908. Its totient is φ = 12200785920.

The previous prime is 12404132401. The next prime is 12404132423. The reversal of 12404132413 is 31423140421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31423140421 = 311013649691.

It can be written as a sum of positive squares in 2 ways, for example, as 264940729 + 12139191684 = 16277^2 + 110178^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404132413 - 213 = 12404124221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404132423) 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, 101673156 + ... + 101673277.

It is an arithmetic number, because the mean of its divisors is an integer number (3151869727).

Almost surely, 212404132413 is an apocalyptic number.

It is an amenable number.

12404132413 is a deficient number, since it is larger than the sum of its proper divisors (203346495).

12404132413 is an equidigital number, since it uses as much as digits as its factorization.

12404132413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203346494.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12404132413 its reverse (31423140421), we get a palindrome (43827272834).

The spelling of 12404132413 in words is "twelve billion, four hundred four million, one hundred thirty-two thousand, four hundred thirteen".

Divisors: 1 61 203346433 12404132413