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15426497485 = 571512918921
BaseRepresentation
bin11100101110111110…
…11010101111001101
31110211002200021020201
432113133122233031
5223043140404420
611030431213501
71054166031220
oct162737325715
943732607221
1015426497485
1165a6945983
122ba6377291
1315bb007329
14a64b255b7
156044ae10a
hex3977dabcd

15426497485 has 16 divisors (see below), whose sum is σ = 21296454912. Its totient is φ = 10508112000.

The previous prime is 15426497473. The next prime is 15426497491. The reversal of 15426497485 is 58479462451.

It is not a de Polignac number, because 15426497485 - 211 = 15426495437 is a prime.

It is a super-2 number, since 2×154264974852 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454176 + ... + 1464745.

It is an arithmetic number, because the mean of its divisors is an integer number (1331028432).

Almost surely, 215426497485 is an apocalyptic number.

It is an amenable number.

15426497485 is a deficient number, since it is larger than the sum of its proper divisors (5869957427).

15426497485 is a wasteful number, since it uses less digits than its factorization.

15426497485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919084.

The product of its digits is 9676800, while the sum is 55.

The spelling of 15426497485 in words is "fifteen billion, four hundred twenty-six million, four hundred ninety-seven thousand, four hundred eighty-five".

Divisors: 1 5 7 35 151 755 1057 5285 2918921 14594605 20432447 102162235 440757071 2203785355 3085299497 15426497485