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13113212330 = 251983831529
BaseRepresentation
bin11000011011001101…
…11011110110101010
31020211212211012120202
430031212323312222
5203323440243310
610005113352202
7642646315511
oct141546736652
936755735522
1013113212330
11561a080569
12265b708662
13130c99024a
148c57d9678
1551b3663a5
hex30d9bbdaa

13113212330 has 32 divisors (see below), whose sum is σ = 25145467200. Its totient is φ = 4909341312.

The previous prime is 13113212303. The next prime is 13113212339. The reversal of 13113212330 is 3321231131.

It is a super-2 number, since 2×131132123302 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13113212339) 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, 399995 + ... + 431534.

It is an arithmetic number, because the mean of its divisors is an integer number (785795850).

Almost surely, 213113212330 is an apocalyptic number.

13113212330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13113212330 is a deficient number, since it is larger than the sum of its proper divisors (12032254870).

13113212330 is a wasteful number, since it uses less digits than its factorization.

13113212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831638.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13113212330 its reverse (3321231131), we get a palindrome (16434443461).

The spelling of 13113212330 in words is "thirteen billion, one hundred thirteen million, two hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 19 38 83 95 166 190 415 830 1577 3154 7885 15770 831529 1663058 4157645 8315290 15799051 31598102 69016907 78995255 138033814 157990510 345084535 690169070 1311321233 2622642466 6556606165 13113212330