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189252061 = 1131674797
BaseRepresentation
bin10110100011111…
…00000111011101
3111012010000000121
423101330013131
5341422031221
630440154541
74455421165
oct1321740735
9435100017
10189252061
1197911969
1253468a51
133029318b
141b1c55a5
1511934a41
hexb47c1dd

189252061 has 4 divisors (see below), whose sum is σ = 190926972. Its totient is φ = 187577152.

The previous prime is 189252059. The next prime is 189252067. The reversal of 189252061 is 160252981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104427961 + 84824100 = 10219^2 + 9210^2 .

It is a cyclic number.

It is not a de Polignac number, because 189252061 - 21 = 189252059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189252067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837286 + ... + 837511.

It is an arithmetic number, because the mean of its divisors is an integer number (47731743).

Almost surely, 2189252061 is an apocalyptic number.

It is an amenable number.

189252061 is a deficient number, since it is larger than the sum of its proper divisors (1674911).

189252061 is a wasteful number, since it uses less digits than its factorization.

189252061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674910.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 189252061 is about 13756.8914003128. The cubic root of 189252061 is about 574.1343607330.

The spelling of 189252061 in words is "one hundred eighty-nine million, two hundred fifty-two thousand, sixty-one".

Divisors: 1 113 1674797 189252061