Search a number
-
+
252001940 = 22519663163
BaseRepresentation
bin11110000010100…
…11111010010100
3122120012000200012
433001103322110
51004003030230
641001135352
76146660351
oct1701237224
9576160605
10252001940
1111a280873
127048a558
1340293998
142567b628
15171cc395
hexf053e94

252001940 has 24 divisors (see below), whose sum is σ = 557057760. Its totient is φ = 95495328.

The previous prime is 252001889. The next prime is 252001957. The reversal of 252001940 is 49100252.

252001940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331202 + ... + 331961.

It is an arithmetic number, because the mean of its divisors is an integer number (23210740).

Almost surely, 2252001940 is an apocalyptic number.

252001940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252001940 is an abundant number, since it is smaller than the sum of its proper divisors (305055820).

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

252001940 is a wasteful number, since it uses less digits than its factorization.

252001940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663191 (or 663189 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 252001940 is about 15874.5689705264. The cubic root of 252001940 is about 631.6375806262.

The spelling of 252001940 in words is "two hundred fifty-two million, one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 663163 1326326 2652652 3315815 6631630 12600097 13263260 25200194 50400388 63000485 126000970 252001940