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190134873 = 3231681487
BaseRepresentation
bin10110101010100…
…11101001011001
3111020202212000100
423111103221121
5342133303443
630511130013
74466056035
oct1325235131
9436685010
10190134873
1198365165
1253813909
1330511c56
141b3751c5
1511a5b3d3
hexb553a59

190134873 has 12 divisors (see below), whose sum is σ = 283499008. Its totient is φ = 122667480.

The previous prime is 190134829. The next prime is 190134899. The reversal of 190134873 is 378431091.

It is a happy number.

It is not a de Polignac number, because 190134873 - 216 = 190069337 is a prime.

It is a super-2 number, since 2×1901348732 = 72302539861452258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190134803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340465 + ... + 341022.

Almost surely, 2190134873 is an apocalyptic number.

It is an amenable number.

190134873 is a deficient number, since it is larger than the sum of its proper divisors (93364135).

190134873 is a wasteful number, since it uses less digits than its factorization.

190134873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681524 (or 681521 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 190134873 is about 13788.9402420926. The cubic root of 190134873 is about 575.0257057191.

The spelling of 190134873 in words is "one hundred ninety million, one hundred thirty-four thousand, eight hundred seventy-three".

Divisors: 1 3 9 31 93 279 681487 2044461 6133383 21126097 63378291 190134873