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12511448014631 = 4313715591362299
BaseRepresentation
bin1011011000010000110001…
…1010100001111100100111
31122022002020022202012210212
42312010030122201330213
53114441421142432011
642335402504010035
72430631226264666
oct266041432417447
948262208665725
1012511448014631
113a94091260115
1214a097676091b
136c9a945180c7
143137b33b4ddd
1516a6b8add08b
hexb610c6a1f27

12511448014631 has 16 divisors (see below), whose sum is σ = 12904141536000. Its totient is φ = 12123493142208.

The previous prime is 12511448014567. The next prime is 12511448014633. The reversal of 12511448014631 is 13641084411521.

It is a cyclic number.

It is not a de Polignac number, because 12511448014631 - 26 = 12511448014567 is a prime.

It is a super-2 number, since 2×125114480146312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12511448014633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8502920 + ... + 9865218.

It is an arithmetic number, because the mean of its divisors is an integer number (806508846000).

Almost surely, 212511448014631 is an apocalyptic number.

12511448014631 is a deficient number, since it is larger than the sum of its proper divisors (392693521369).

12511448014631 is a wasteful number, since it uses less digits than its factorization.

12511448014631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364038.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 12511448014631 in words is "twelve trillion, five hundred eleven billion, four hundred forty-eight million, fourteen thousand, six hundred thirty-one".

Divisors: 1 43 137 1559 5891 67037 213583 1362299 9184069 58578857 186634963 2123824141 8025303409 91324438063 290963907317 12511448014631