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189162 = 23331113
BaseRepresentation
bin101110001011101010
3100121111000
4232023222
522023122
64015430
71415331
oct561352
9317430
10189162
1111a136
1291576
136813c
144cd18
153b0ac
hex2e2ea

189162 has 32 divisors (see below), whose sum is σ = 437760. Its totient is φ = 60480.

The previous prime is 189151. The next prime is 189169. The reversal of 189162 is 261981.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (189169) by changing a digit.

189162 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1618 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2189162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218880).

189162 is an abundant number, since it is smaller than the sum of its proper divisors (248598).

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

189162 is a wasteful number, since it uses less digits than its factorization.

189162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 149 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 189162 is about 434.9275801786. The cubic root of 189162 is about 57.4043273537.

It can be divided in two parts, 1891 and 62, that added together give a triangular number (1953 = T62).

The spelling of 189162 in words is "one hundred eighty-nine thousand, one hundred sixty-two".

Divisors: 1 2 3 6 9 18 27 31 54 62 93 113 186 226 279 339 558 678 837 1017 1674 2034 3051 3503 6102 7006 10509 21018 31527 63054 94581 189162