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12126914399 = 103281418993
BaseRepresentation
bin10110100101101001…
…00000011101011111
31011022010221002011202
423102310200131133
5144313442230044
65323201510115
7606342033365
oct132264403537
934263832152
1012126914399
115163366306
12242534233b
1311b353c9c2
14830817635
154ae98ec4e
hex2d2d2075f

12126914399 has 8 divisors (see below), whose sum is σ = 12288256032. Its totient is φ = 11966411520.

The previous prime is 12126914357. The next prime is 12126914411. The reversal of 12126914399 is 99341962121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12126914399 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 (12126914099) 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, 180554 + ... + 238439.

It is an arithmetic number, because the mean of its divisors is an integer number (1536032004).

Almost surely, 212126914399 is an apocalyptic number.

12126914399 is a deficient number, since it is larger than the sum of its proper divisors (161341633).

12126914399 is a wasteful number, since it uses less digits than its factorization.

12126914399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419377.

The product of its digits is 209952, while the sum is 47.

The spelling of 12126914399 in words is "twelve billion, one hundred twenty-six million, nine hundred fourteen thousand, three hundred ninety-nine".

Divisors: 1 103 281 28943 418993 43156279 117737033 12126914399