Search a number
-
+
298957428 = 223273113171
BaseRepresentation
bin10001110100011…
…011101001110100
3202211112121111100
4101310123221310
51103013114203
645355410100
710260045000
oct2164335164
9684477440
10298957428
11143832160
1284153930
1349c243b3
142b9c1700
151b3a4ea3
hex11d1ba74

298957428 has 288 divisors, whose sum is σ = 1006387200. Its totient is φ = 74088000.

The previous prime is 298957423. The next prime is 298957441. The reversal of 298957428 is 824759892.

Its product of digits (2903040) is a multiple of the sum of its prime factors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298957423) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4210633 + ... + 4210703.

It is an arithmetic number, because the mean of its divisors is an integer number (3494400).

Almost surely, 2298957428 is an apocalyptic number.

298957428 is a gapful number since it is divisible by the number (28) 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 298957428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503193600).

298957428 is an abundant number, since it is smaller than the sum of its proper divisors (707429772).

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

298957428 is a wasteful number, since it uses less digits than its factorization.

298957428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 125 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 298957428 is about 17290.3854208054. The cubic root of 298957428 is about 668.6565699622.

The spelling of 298957428 in words is "two hundred ninety-eight million, nine hundred fifty-seven thousand, four hundred twenty-eight".