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189406766675 = 5279349115769
BaseRepresentation
bin1011000001100110000…
…1011110011001010011
3200002220002020200020102
42300121201132121103
511100401113013200
6223002352203015
716453450644560
oct2603141363123
9602802220212
10189406766675
1173366200215
123085bb3946b
1314b26765089
14924b257867
154dd84836d5
hex2c1985e653

189406766675 has 24 divisors (see below), whose sum is σ = 268447476000. Its totient is φ = 129863911680.

The previous prime is 189406766567. The next prime is 189406766707. The reversal of 189406766675 is 576667604981.

It is not a de Polignac number, because 189406766675 - 212 = 189406762579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1578191 + ... + 1693959.

It is an arithmetic number, because the mean of its divisors is an integer number (11185311500).

Almost surely, 2189406766675 is an apocalyptic number.

189406766675 is a deficient number, since it is larger than the sum of its proper divisors (79040709325).

189406766675 is a wasteful number, since it uses less digits than its factorization.

189406766675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125135 (or 125130 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 189406766675 in words is "one hundred eighty-nine billion, four hundred six million, seven hundred sixty-six thousand, six hundred seventy-five".

Divisors: 1 5 7 25 35 175 9349 46745 65443 115769 233725 327215 578845 810383 1636075 2894225 4051915 20259575 1082324381 5411621905 7576270667 27058109525 37881353335 189406766675