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189107083 = 1117191553
BaseRepresentation
bin10110100010110…
…00101110001011
3111011211122011001
423101120232023
5341402411313
630433115431
74454245414
oct1321305613
9434748131
10189107083
1197822a50
12533b8b77
13302421a9
141b18880b
1511906add
hexb458b8b

189107083 has 4 divisors (see below), whose sum is σ = 206298648. Its totient is φ = 171915520.

The previous prime is 189107063. The next prime is 189107089. The reversal of 189107083 is 380701981.

189107083 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 189107083 - 29 = 189106571 is a prime.

It is a super-2 number, since 2×1891070832 = 71522977681537778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189107089) 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, 8595766 + ... + 8595787.

It is an arithmetic number, because the mean of its divisors is an integer number (51574662).

Almost surely, 2189107083 is an apocalyptic number.

189107083 is a deficient number, since it is larger than the sum of its proper divisors (17191565).

189107083 is a wasteful number, since it uses less digits than its factorization.

189107083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17191564.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 189107083 is about 13751.6211044371. The cubic root of 189107083 is about 573.9877165966.

The spelling of 189107083 in words is "one hundred eighty-nine million, one hundred seven thousand, eighty-three".

Divisors: 1 11 17191553 189107083