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189113752 = 23531932311
BaseRepresentation
bin10110100010110…
…10010110011000
3111011211222022001
423101122112120
5341403120002
630433210344
74454304022
oct1321322630
9434758261
10189113752
1197827a63
12534009b4
1330245239
141b18b012
1511908a87
hexb45a598

189113752 has 32 divisors (see below), whose sum is σ = 363307680. Its totient is φ = 92252160.

The previous prime is 189113719. The next prime is 189113753. The reversal of 189113752 is 257311981.

It is a super-2 number, since 2×1891137522 = 71528022391035008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189113753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80677 + ... + 82987.

It is an arithmetic number, because the mean of its divisors is an integer number (11353365).

Almost surely, 2189113752 is an apocalyptic number.

It is an amenable number.

189113752 is a deficient number, since it is larger than the sum of its proper divisors (174193928).

189113752 is a wasteful number, since it uses less digits than its factorization.

189113752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563 (or 2559 counting only the distinct ones).

The product of its digits is 15120, while the sum is 37.

The square root of 189113752 is about 13751.8635828022. The cubic root of 189113752 is about 573.9944638833.

The spelling of 189113752 in words is "one hundred eighty-nine million, one hundred thirteen thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 53 106 193 212 386 424 772 1544 2311 4622 9244 10229 18488 20458 40916 81832 122483 244966 446023 489932 892046 979864 1784092 3568184 23639219 47278438 94556876 189113752