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22198941 = 34274061
BaseRepresentation
bin101010010101…
…1101010011101
31112202211020000
41110223222131
521140331231
62111444513
7356454642
oct124535235
945684200
1022198941
1111592436
127526739
1347a328b
142d3bdc9
151e376e6
hex152ba9d

22198941 has 10 divisors (see below), whose sum is σ = 33161502. Its totient is φ = 14799240.

The previous prime is 22198919. The next prime is 22198951. The reversal of 22198941 is 14989122.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 715716 = 4635^2 + 846^2 .

It is not a de Polignac number, because 22198941 - 26 = 22198877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22198896 and 22198905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198951) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 136950 + ... + 137111.

Almost surely, 222198941 is an apocalyptic number.

It is an amenable number.

22198941 is a deficient number, since it is larger than the sum of its proper divisors (10962561).

22198941 is an equidigital number, since it uses as much as digits as its factorization.

22198941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274073 (or 274064 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 22198941 is about 4711.5752142994. The cubic root of 22198941 is about 281.0460067442.

The spelling of 22198941 in words is "twenty-two million, one hundred ninety-eight thousand, nine hundred forty-one".

Divisors: 1 3 9 27 81 274061 822183 2466549 7399647 22198941