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29068780 = 22513234861
BaseRepresentation
bin110111011100…
…0110111101100
32000200211212111
41232320313230
524420200110
62515013404
7502036426
oct156706754
960624774
1029068780
1115454894
12989a264
13603a180
143c09816
152842e8a
hex1bb8dec

29068780 has 48 divisors (see below), whose sum is σ = 68612544. Its totient is φ = 10264320.

The previous prime is 29068777. The next prime is 29068789. The reversal of 29068780 is 8786092.

It is not an unprimeable number, because it can be changed into a prime (29068789) 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, 3550 + ... + 8410.

It is an arithmetic number, because the mean of its divisors is an integer number (1429428).

Almost surely, 229068780 is an apocalyptic number.

29068780 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 29068780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34306272).

29068780 is an abundant number, since it is smaller than the sum of its proper divisors (39543764).

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

29068780 is a wasteful number, since it uses less digits than its factorization.

29068780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906 (or 4904 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 29068780 is about 5391.5470878033. The cubic root of 29068780 is about 307.4743803980.

The spelling of 29068780 in words is "twenty-nine million, sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 23 26 46 52 65 92 115 130 230 260 299 460 598 1196 1495 2990 4861 5980 9722 19444 24305 48610 63193 97220 111803 126386 223606 252772 315965 447212 559015 631930 1118030 1263860 1453439 2236060 2906878 5813756 7267195 14534390 29068780