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129606389510 = 25136116979631
BaseRepresentation
bin111100010110100100…
…1001000111100000110
3110101112111021202112112
41320231021020330012
54110413213431020
6135312414421022
712235524063623
oct1705511107406
9411474252475
10129606389510
114aa69478804
1221150b01772
13c2b648c610
1463b70c934a
1535885132c5
hex1e2d248f06

129606389510 has 64 divisors (see below), whose sum is σ = 255532644864. Its totient is φ = 47037542400.

The previous prime is 129606389503. The next prime is 129606389513. The reversal of 129606389510 is 15983606921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129606389513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13452395 + ... + 13462025.

It is an arithmetic number, because the mean of its divisors is an integer number (3992697576).

Almost surely, 2129606389510 is an apocalyptic number.

129606389510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129606389510 is a deficient number, since it is larger than the sum of its proper divisors (125926255354).

129606389510 is a wasteful number, since it uses less digits than its factorization.

129606389510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 129606389510 in words is "one hundred twenty-nine billion, six hundred six million, three hundred eighty-nine thousand, five hundred ten".

Divisors: 1 2 5 10 13 26 61 65 122 130 305 610 793 1586 1697 3394 3965 7930 8485 9631 16970 19262 22061 44122 48155 96310 103517 110305 125203 207034 220610 250406 517585 587491 626015 1035170 1174982 1252030 1345721 2691442 2937455 5874910 6728605 7637383 13457210 15274766 16343807 32687614 38186915 76373830 81719035 163438070 212469491 424938982 996972227 1062347455 1993944454 2124694910 4984861135 9969722270 12960638951 25921277902 64803194755 129606389510