Search a number
-
+
188713092 = 223192928541
BaseRepresentation
bin10110011111110…
…00100010000100
3111011002121200210
423033320202010
5341302304332
630420435420
74451014641
oct1317704204
9434077623
10188713092
1197583a37
1253248b70
1330134a69
141b0c4dc8
1511879ecc
hexb3f8884

188713092 has 48 divisors (see below), whose sum is σ = 479505600. Its totient is φ = 57536640.

The previous prime is 188713069. The next prime is 188713097. The reversal of 188713092 is 290317881.

It is a super-2 number, since 2×1887130922 = 71225262184400928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 188713092.

It is not an unprimeable number, because it can be changed into a prime (188713097) 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 15 ways as a sum of consecutive naturals, for example, 7659 + ... + 20882.

It is an arithmetic number, because the mean of its divisors is an integer number (9989700).

Almost surely, 2188713092 is an apocalyptic number.

188713092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188713092 is an abundant number, since it is smaller than the sum of its proper divisors (290792508).

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

188713092 is a wasteful number, since it uses less digits than its factorization.

188713092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28596 (or 28594 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 188713092 is about 13737.2883787158. The cubic root of 188713092 is about 573.5888187414.

The spelling of 188713092 in words is "one hundred eighty-eight million, seven hundred thirteen thousand, ninety-two".

Divisors: 1 2 3 4 6 12 19 29 38 57 58 76 87 114 116 174 228 348 551 1102 1653 2204 3306 6612 28541 57082 85623 114164 171246 342492 542279 827689 1084558 1626837 1655378 2169116 2483067 3253674 3310756 4966134 6507348 9932268 15726091 31452182 47178273 62904364 94356546 188713092