Search a number
-
+
238820252 = 221131317341
BaseRepresentation
bin11100011110000…
…01101110011100
3121122101022210112
432033001232130
5442114222002
635410425152
75626636646
oct1617015634
9548338715
10238820252
11112898210
1267b921b8
133a629b78
1423a09896
1515e76852
hexe3c1b9c

238820252 has 24 divisors (see below), whose sum is σ = 457412592. Its totient is φ = 108201600.

The previous prime is 238820251. The next prime is 238820297. The reversal of 238820252 is 252028832.

It is a super-2 number, since 2×2388202522 = 114070225530687008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238820251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5102 + ... + 22442.

It is an arithmetic number, because the mean of its divisors is an integer number (19058858).

Almost surely, 2238820252 is an apocalyptic number.

238820252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

238820252 is a deficient number, since it is larger than the sum of its proper divisors (218592340).

238820252 is a wasteful number, since it uses less digits than its factorization.

238820252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17669 (or 17667 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 238820252 is about 15453.8102744922. The cubic root of 238820252 is about 620.4265638942.

The spelling of 238820252 in words is "two hundred thirty-eight million, eight hundred twenty thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 44 313 626 1252 3443 6886 13772 17341 34682 69364 190751 381502 763004 5427733 10855466 21710932 59705063 119410126 238820252