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12129461707 = 116171787161
BaseRepresentation
bin10110100101111100…
…01110010111001011
31011022022201111102111
423102332032113023
5144320120233312
65323332243151
7606402503056
oct132276162713
934268644374
1012129461707
115164846120
1224261704b7
1311b3c2229c
14830cbba9d
154aece48a7
hex2d2f8e5cb

12129461707 has 8 divisors (see below), whose sum is σ = 13253593392. Its totient is φ = 11008905600.

The previous prime is 12129461683. The next prime is 12129461753. The reversal of 12129461707 is 70716492121.

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

It is not a de Polignac number, because 12129461707 - 215 = 12129428939 is a prime.

It is a super-3 number, since 3×121294617073 (a number of 31 digits) contains 333 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 12129461707.

It is not an unprimeable number, because it can be changed into a prime (12129461807) 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, 886794 + ... + 900367.

It is an arithmetic number, because the mean of its divisors is an integer number (1656699174).

Almost surely, 212129461707 is an apocalyptic number.

12129461707 is a deficient number, since it is larger than the sum of its proper divisors (1124131685).

12129461707 is a wasteful number, since it uses less digits than its factorization.

12129461707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787789.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 12129461707 in words is "twelve billion, one hundred twenty-nine million, four hundred sixty-one thousand, seven hundred seven".

Divisors: 1 11 617 6787 1787161 19658771 1102678337 12129461707