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29725720060 = 22510119774699
BaseRepresentation
bin11011101011110010…
…100111110111111100
32211201122012001000211
4123223302213313330
5441334241020220
621353353202204
72101426310611
oct335362476774
984648161024
1029725720060
11116744374a3
125917100364
132a5960118a
14161dc4c508
15b8e9eab5a
hex6ebca7dfc

29725720060 has 48 divisors (see below), whose sum is σ = 63362930400. Its totient is φ = 11712646400.

The previous prime is 29725719977. The next prime is 29725720061. The reversal of 29725720060 is 6002752792.

It is a junction number, because it is equal to n+sod(n) for n = 29725719995 and 29725720022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29725720061) 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, 360591 + ... + 435289.

It is an arithmetic number, because the mean of its divisors is an integer number (1320061050).

Almost surely, 229725720060 is an apocalyptic number.

29725720060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29725720060 is an abundant number, since it is smaller than the sum of its proper divisors (33637210340).

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

29725720060 is a wasteful number, since it uses less digits than its factorization.

29725720060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75006 (or 75004 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 29725720060 in words is "twenty-nine billion, seven hundred twenty-five million, seven hundred twenty thousand, sixty".

Divisors: 1 2 4 5 10 20 101 197 202 394 404 505 788 985 1010 1970 2020 3940 19897 39794 74699 79588 99485 149398 198970 298796 373495 397940 746990 1493980 7544599 14715703 15089198 29431406 30178396 37722995 58862812 73578515 75445990 147157030 150891980 294314060 1486286003 2972572006 5945144012 7431430015 14862860030 29725720060