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172938 = 23193741
BaseRepresentation
bin101010001110001010
322210020010
4222032022
521013223
63412350
71320123
oct521612
9283203
10172938
11108a27
12840b6
136093c
144704a
1536393
hex2a38a

172938 has 32 divisors (see below), whose sum is σ = 383040. Its totient is φ = 51840.

The previous prime is 172933. The next prime is 172969. The reversal of 172938 is 839271.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (172933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4198 + ... + 4238.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2172938 is an apocalyptic number.

172938 is an abundant number, since it is smaller than the sum of its proper divisors (210102).

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

172938 is a wasteful number, since it uses less digits than its factorization.

172938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102.

The product of its digits is 3024, while the sum is 30.

The square root of 172938 is about 415.8581488921. The cubic root of 172938 is about 55.7138893557.

The spelling of 172938 in words is "one hundred seventy-two thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 19 37 38 41 57 74 82 111 114 123 222 246 703 779 1406 1517 1558 2109 2337 3034 4218 4551 4674 9102 28823 57646 86469 172938