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29996772960 = 2535721123712
BaseRepresentation
bin11011111011111100…
…100110111001100000
32212102112012221201010
4123323330212321200
5442413133213320
621440314540520
72111230235400
oct337374467140
985375187633
1029996772960
11117a343a560
125991a37740
132aa08052cb
141647c48800
15ba86dcae0
hex6fbf26e60

29996772960 has 864 divisors, whose sum is σ = 126909732096. Its totient is φ = 5878118400.

The previous prime is 29996772931. The next prime is 29996772961. The reversal of 29996772960 is 6927769992.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 29996772891 and 29996772900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29996772961) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 422489725 + ... + 422489795.

It is an arithmetic number, because the mean of its divisors is an integer number (146886264).

Almost surely, 229996772960 is an apocalyptic number.

29996772960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29996772960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63454866048).

29996772960 is an abundant number, since it is smaller than the sum of its proper divisors (96912959136).

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

29996772960 is a wasteful number, since it uses less digits than its factorization.

29996772960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 46294416, while the sum is 66.

The spelling of 29996772960 in words is "twenty-nine billion, nine hundred ninety-six million, seven hundred seventy-two thousand, nine hundred sixty".