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13124057544 = 23321314021429
BaseRepresentation
bin11000011100100000…
…10011100111001000
31020212122020012102100
430032100103213020
5203334224320134
610010142033400
7643140435303
oct141620234710
936778205370
1013124057544
115625208754
122663278860
131311cb9730
148c701db3a
1551c2a9999
hex30e4139c8

13124057544 has 48 divisors (see below), whose sum is σ = 38278503900. Its totient is φ = 4038171264.

The previous prime is 13124057519. The next prime is 13124057591. The reversal of 13124057544 is 44575042131.

13124057544 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 40 + 575 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12218649444 + 905408100 = 110538^2 + 30090^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13124057499 and 13124057508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7009779 + ... + 7011650.

Almost surely, 213124057544 is an apocalyptic number.

It is an amenable number.

13124057544 is an abundant number, since it is smaller than the sum of its proper divisors (25154446356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13124057544 is a wasteful number, since it uses less digits than its factorization.

13124057544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14021454 (or 14021447 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 13124057544 its reverse (44575042131), we get a palindrome (57699099675).

The spelling of 13124057544 in words is "thirteen billion, one hundred twenty-four million, fifty-seven thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 14021429 28042858 42064287 56085716 84128574 112171432 126192861 168257148 182278577 252385722 336514296 364557154 504771444 546835731 729114308 1009542888 1093671462 1458228616 1640507193 2187342924 3281014386 4374685848 6562028772 13124057544