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12402032401 = 115919109449
BaseRepresentation
bin10111000110011011…
…11111111100010001
31012000022121112010101
423203031333330101
5200344410014101
65410350332401
7616222351603
oct134315777421
935008545111
1012402032401
115294695560
1224a14ba101
131228538215
14859191173
154c8bd6401
hex2e337ff11

12402032401 has 8 divisors (see below), whose sum is σ = 13758804000. Its totient is φ = 11083479840.

The previous prime is 12402032399. The next prime is 12402032413. The reversal of 12402032401 is 10423020421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12402032401 - 21 = 12402032399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12402033401) 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, 9554076 + ... + 9555373.

It is an arithmetic number, because the mean of its divisors is an integer number (1719850500).

Almost surely, 212402032401 is an apocalyptic number.

12402032401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12402032401 is a deficient number, since it is larger than the sum of its proper divisors (1356771599).

12402032401 is a wasteful number, since it uses less digits than its factorization.

12402032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19109519.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12402032401 its reverse (10423020421), we get a palindrome (22825052822).

The spelling of 12402032401 in words is "twelve billion, four hundred two million, thirty-two thousand, four hundred one".

Divisors: 1 11 59 649 19109449 210203939 1127457491 12402032401