Base | Representation |
---|---|
bin | 1110111011010… |
… | …00111001001110 |
3 | 22201121100002110 |
4 | 13131220321032 |
5 | 224023211230 |
6 | 20231404450 |
7 | 3050161200 |
oct | 735507116 |
9 | 281540073 |
10 | 125210190 |
11 | 647502a6 |
12 | 35b23726 |
13 | 1cc2c591 |
14 | 128b4770 |
15 | aed44b0 |
hex | 7768e4e |
125210190 has 96 divisors (see below), whose sum is σ = 368046720. Its totient is φ = 27107136.
The previous prime is 125210179. The next prime is 125210201. The reversal of 125210190 is 91012521.
It is an interprime number because it is at equal distance from previous prime (125210179) and next prime (125210201).
It is a super-2 number, since 2×1252101902 = 31355183359672200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25689 + ... + 30171.
It is an arithmetic number, because the mean of its divisors is an integer number (3833820).
Almost surely, 2125210190 is an apocalyptic number.
125210190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 125210190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184023360).
125210190 is an abundant number, since it is smaller than the sum of its proper divisors (242836530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
125210190 is a wasteful number, since it uses less digits than its factorization.
125210190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4526 (or 4519 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 21.
The square root of 125210190 is about 11189.7359218169. The cubic root of 125210190 is about 500.2800963961.
The spelling of 125210190 in words is "one hundred twenty-five million, two hundred ten thousand, one hundred ninety".
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