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13124240442 = 2324328160343
BaseRepresentation
bin11000011100100010…
…00000010000111010
31020212122120111022100
430032101000100322
5203334301143232
610010150004230
7643142126445
oct141621002072
936778514270
1013124240442
115625323105
122663346676
131312051a61
148c706a65c
1551c2e3c7c
hex30e44043a

13124240442 has 48 divisors (see below), whose sum is σ = 29201185728. Its totient is φ = 4257731520.

The previous prime is 13124240387. The next prime is 13124240461. The reversal of 13124240442 is 24404242131.

13124240442 is a `hidden beast` number, since 13 + 1 + 242 + 404 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187323 + ... + 247665.

It is an arithmetic number, because the mean of its divisors is an integer number (608358036).

Almost surely, 213124240442 is an apocalyptic number.

13124240442 is an abundant number, since it is smaller than the sum of its proper divisors (16076945286).

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

13124240442 is a wasteful number, since it uses less digits than its factorization.

13124240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60675 (or 60672 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 13124240442 its reverse (24404242131), we get a palindrome (37528482573).

The spelling of 13124240442 in words is "thirteen billion, one hundred twenty-four million, two hundred forty thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 43 86 129 258 281 387 562 774 843 1686 2529 5058 12083 24166 36249 60343 72498 108747 120686 181029 217494 362058 543087 1086174 2594749 5189498 7784247 15568494 16956383 23352741 33912766 46705482 50869149 101738298 152607447 305214894 729124469 1458248938 2187373407 4374746814 6562120221 13124240442