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315511641425431 = 11172349128429879
BaseRepresentation
bin100011110111101001100011…
…1010011110100011000010111
31112101010121200202220100212001
41013233103013103310120113
5312323320320201103211
63035012014101140131
7123312651413224063
oct10757230723643027
91471117622810761
10315511641425431
1191593810238750
122b47832a3ba647
131070880a53ab79
1457cabb868caa3
1526722adb47ac1
hex11ef4c74f4617

315511641425431 has 24 divisors (see below), whose sum is σ = 365736987296640. Its totient is φ = 269879145878400.

The previous prime is 315511641425353. The next prime is 315511641425573. The reversal of 315511641425431 is 134524146115513.

It is not a de Polignac number, because 315511641425431 - 29 = 315511641424919 is a prime.

It is a super-2 number, since 2×3155116414254312 (a number of 30 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 (315511641405431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3117051 + ... + 25312828.

It is an arithmetic number, because the mean of its divisors is an integer number (15239041137360).

Almost surely, 2315511641425431 is an apocalyptic number.

315511641425431 is a deficient number, since it is larger than the sum of its proper divisors (50225345871209).

315511641425431 is a wasteful number, since it uses less digits than its factorization.

315511641425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28433415 (or 28433398 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The spelling of 315511641425431 in words is "three hundred fifteen trillion, five hundred eleven billion, six hundred forty-one million, four hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 11 17 187 289 3179 3491 38401 59347 652817 1008899 11097889 28429879 312728669 483307943 5316387373 8216235031 90378585341 99248707589 1091735783479 1687228029013 18559508319143 28682876493221 315511641425431