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12448920127 = 74737838663
BaseRepresentation
bin10111001100000001…
…10111001000111111
31012010120211122222211
423212000313020333
5200443410421002
65415143321251
7620332034530
oct134600671077
935116748884
1012448920127
1153090aaa46
1224b5150227
131235173b37
148614b8687
154ccd98dd7
hex2e603723f

12448920127 has 8 divisors (see below), whose sum is σ = 14530046976. Its totient is φ = 10443470712.

The previous prime is 12448920119. The next prime is 12448920149. The reversal of 12448920127 is 72102984421.

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 12448920127 - 23 = 12448920119 is a prime.

It is a super-2 number, since 2×124489201272 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12448920127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448920227) 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, 18919003 + ... + 18919660.

It is an arithmetic number, because the mean of its divisors is an integer number (1816255872).

Almost surely, 212448920127 is an apocalyptic number.

12448920127 is a deficient number, since it is larger than the sum of its proper divisors (2081126849).

12448920127 is an equidigital number, since it uses as much as digits as its factorization.

12448920127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37838717.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12448920127 in words is "twelve billion, four hundred forty-eight million, nine hundred twenty thousand, one hundred twenty-seven".

Divisors: 1 7 47 329 37838663 264870641 1778417161 12448920127