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182138201 = 7109723719
BaseRepresentation
bin10101101101100…
…11010101011001
3110200201120122022
422312303111121
5333111410301
630023504225
74341102110
oct1266632531
9420646568
10182138201
11938a3143
1250bb8075
132b9721ab
141a292c77
1510ecbd1b
hexadb3559

182138201 has 8 divisors (see below), whose sum is σ = 208356480. Its totient is φ = 155969568.

The previous prime is 182138191. The next prime is 182138261. The reversal of 182138201 is 102831281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 182138201 - 26 = 182138137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182138261) 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, 4181 + ... + 19538.

It is an arithmetic number, because the mean of its divisors is an integer number (26044560).

Almost surely, 2182138201 is an apocalyptic number.

It is an amenable number.

182138201 is a deficient number, since it is larger than the sum of its proper divisors (26218279).

182138201 is a wasteful number, since it uses less digits than its factorization.

182138201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24823.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 182138201 is about 13495.8586610856. The cubic root of 182138201 is about 566.8485162998.

Adding to 182138201 its reverse (102831281), we get a palindrome (284969482).

The spelling of 182138201 in words is "one hundred eighty-two million, one hundred thirty-eight thousand, two hundred one".

Divisors: 1 7 1097 7679 23719 166033 26019743 182138201