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13121104132 = 22193717832617
BaseRepresentation
bin11000011100001010…
…00010100100000100
31020212102200011002201
430032011002210010
5203333000313012
610005554444244
7643103354623
oct141605024404
936772604081
1013121104132
115623580814
122662293684
1313114c4356
148c68916ba
1551bdc4857
hex30e142904

13121104132 has 48 divisors (see below), whose sum is σ = 24847123840. Its totient is φ = 6041578752.

The previous prime is 13121104127. The next prime is 13121104133. The reversal of 13121104132 is 23140112131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (13121104133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5012488 + ... + 5015104.

Almost surely, 213121104132 is an apocalyptic number.

It is an amenable number.

13121104132 is a deficient number, since it is larger than the sum of its proper divisors (11726019708).

13121104132 is a wasteful number, since it uses less digits than its factorization.

13121104132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13121104132 its reverse (23140112131), we get a palindrome (36261216263).

The spelling of 13121104132 in words is "thirteen billion, one hundred twenty-one million, one hundred four thousand, one hundred thirty-two".

Divisors: 1 2 4 19 37 38 74 76 148 703 1406 1783 2617 2812 3566 5234 7132 10468 33877 49723 65971 67754 96829 99446 131942 135508 193658 198892 263884 387316 1253449 1839751 2506898 3679502 4666111 5013796 7359004 9332222 18664444 88656109 172646107 177312218 345292214 354624436 690584428 3280276033 6560552066 13121104132