Search a number
-
+
188853942 = 23154320399
BaseRepresentation
bin10110100000110…
…10111010110110
3111011100202220110
423100122322312
5341321311232
630423443450
74452142404
oct1320327266
9434322813
10188853942
119766a842
12532b6586
1330183bc4
141b120474
15118a6acc
hexb41aeb6

188853942 has 16 divisors (see below), whose sum is σ = 377971200. Its totient is φ = 62907432.

The previous prime is 188853937. The next prime is 188853947. The reversal of 188853942 is 249358881.

It is an interprime number because it is at equal distance from previous prime (188853937) and next prime (188853947).

It is a super-2 number, since 2×1888539422 = 71331622817878728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188853891 and 188853900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188853947) 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, 942 + ... + 19457.

It is an arithmetic number, because the mean of its divisors is an integer number (23623200).

Almost surely, 2188853942 is an apocalyptic number.

188853942 is an abundant number, since it is smaller than the sum of its proper divisors (189117258).

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

188853942 is a wasteful number, since it uses less digits than its factorization.

188853942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21947.

The product of its digits is 552960, while the sum is 48.

The square root of 188853942 is about 13742.4139800837. The cubic root of 188853942 is about 573.7314866274.

The spelling of 188853942 in words is "one hundred eighty-eight million, eight hundred fifty-three thousand, nine hundred forty-two".

Divisors: 1 2 3 6 1543 3086 4629 9258 20399 40798 61197 122394 31475657 62951314 94426971 188853942