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11400000121 = 79891621391
BaseRepresentation
bin10101001110111111…
…00011001001111001
31002102111010000020201
422213133203021321
5141321400000441
65123113322201
7552334254646
oct124737431171
932374100221
1011400000121
114920003904
122261a06361
1310c8a69003
147a2074dcd
1546ac52c31
hex2a77e3279

11400000121 has 8 divisors (see below), whose sum is σ = 11674022400. Its totient is φ = 11129220960.

The previous prime is 11400000049. The next prime is 11400000151. The reversal of 11400000121 is 12100000411.

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 11400000121 - 211 = 11399998073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11400000098 and 11400000107.

It is not an unprimeable number, because it can be changed into a prime (11400000151) 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, 803665 + ... + 817726.

It is an arithmetic number, because the mean of its divisors is an integer number (1459252800).

Almost surely, 211400000121 is an apocalyptic number.

It is an amenable number.

11400000121 is a deficient number, since it is larger than the sum of its proper divisors (274022279).

11400000121 is an equidigital number, since it uses as much as digits as its factorization.

11400000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621559.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11400000121 its reverse (12100000411), we get a palindrome (23500000532).

The spelling of 11400000121 in words is "eleven billion, four hundred million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 79 89 7031 1621391 128089889 144303799 11400000121