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125220 = 22352087
BaseRepresentation
bin11110100100100100
320100202210
4132210210
513001340
62403420
71031034
oct364444
9210683
10125220
1186097
1260570
1344cc4
14338c4
1527180
hex1e924

125220 has 24 divisors (see below), whose sum is σ = 350784. Its totient is φ = 33376.

The previous prime is 125219. The next prime is 125221. The reversal of 125220 is 22521.

Adding to 125220 its reverse (22521), we get a palindrome (147741).

It is an interprime number because it is at equal distance from previous prime (125219) and next prime (125221).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 125196 and 125205.

It is not an unprimeable number, because it can be changed into a prime (125221) 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, 984 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (14616).

2125220 is an apocalyptic number.

125220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125220 is an abundant number, since it is smaller than the sum of its proper divisors (225564).

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

125220 is a wasteful number, since it uses less digits than its factorization.

125220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 125220 is about 353.8643808015. The cubic root of 125220 is about 50.0293161413.

The spelling of 125220 in words is "one hundred twenty-five thousand, two hundred twenty".