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190871075 = 5271191563
BaseRepresentation
bin10110110000001…
…11011000100011
3111022011020220002
423120013120203
5342330333300
630535010215
74505243303
oct1330073043
9438136802
10190871075
119881829a
1253b0996b
133070c085
141b4c7603
1511b545d5
hexb607623

190871075 has 24 divisors (see below), whose sum is σ = 241698816. Its totient is φ = 149492000.

The previous prime is 190871063. The next prime is 190871119. The reversal of 190871075 is 570178091.

It is not a de Polignac number, because 190871075 - 214 = 190854691 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338744 + ... + 339306.

It is an arithmetic number, because the mean of its divisors is an integer number (10070784).

Almost surely, 2190871075 is an apocalyptic number.

190871075 is a deficient number, since it is larger than the sum of its proper divisors (50827741).

190871075 is a wasteful number, since it uses less digits than its factorization.

190871075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 190871075 is about 13815.6098309123. The cubic root of 190871075 is about 575.7669161661.

The spelling of 190871075 in words is "one hundred ninety million, eight hundred seventy-one thousand, seventy-five".

Divisors: 1 5 25 71 191 355 563 955 1775 2815 4775 13561 14075 39973 67805 107533 199865 339025 537665 999325 2688325 7634843 38174215 190871075