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299955380 = 225311672897
BaseRepresentation
bin10001111000001…
…111010010110100
3202220102022102112
4101320033102310
51103242033010
645433030152
710301402324
oct2170172264
9686368375
10299955380
11144353a0a
1284555358
134a1b36ba
142bba1284
151b500a05
hex11e0f4b4

299955380 has 48 divisors (see below), whose sum is σ = 654345216. Its totient is φ = 115376640.

The previous prime is 299955373. The next prime is 299955407. The reversal of 299955380 is 83559992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102092 + ... + 104988.

It is an arithmetic number, because the mean of its divisors is an integer number (13632192).

Almost surely, 2299955380 is an apocalyptic number.

299955380 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 299955380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327172608).

299955380 is an abundant number, since it is smaller than the sum of its proper divisors (354389836).

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

299955380 is a wasteful number, since it uses less digits than its factorization.

299955380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 299955380 is about 17319.2199593400. The cubic root of 299955380 is about 669.3997594386.

The spelling of 299955380 in words is "two hundred ninety-nine million, nine hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 167 310 334 620 668 835 1670 2897 3340 5177 5794 10354 11588 14485 20708 25885 28970 51770 57940 89807 103540 179614 359228 449035 483799 898070 967598 1796140 1935196 2418995 4837990 9675980 14997769 29995538 59991076 74988845 149977690 299955380