Search a number
-
+
122970 = 2354099
BaseRepresentation
bin11110000001011010
320020200110
4132001122
512413340
62345150
71021341
oct360132
9206613
10122970
1184431
125b1b6
1343c83
1432b58
1526680
hex1e05a

122970 has 16 divisors (see below), whose sum is σ = 295200. Its totient is φ = 32784.

The previous prime is 122963. The next prime is 122971. The reversal of 122970 is 79221.

122970 = T64 + T65 + ... + T99.

It is a happy number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (122971) 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, 2020 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (18450).

2122970 is an apocalyptic number.

122970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122970 is an abundant number, since it is smaller than the sum of its proper divisors (172230).

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

122970 is a wasteful number, since it uses less digits than its factorization.

122970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 122970 is about 350.6707857806. The cubic root of 122970 is about 49.7278547602.

The spelling of 122970 in words is "one hundred twenty-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 4099 8198 12297 20495 24594 40990 61485 122970