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190135253 = 7112469289
BaseRepresentation
bin10110101010100…
…11101111010101
3111020202212112102
423111103233111
5342133312003
630511131445
74466060120
oct1325235725
9436685472
10190135253
1198365480
1253813b85
1330512189
141b3753b7
1511a5b588
hexb553bd5

190135253 has 8 divisors (see below), whose sum is σ = 237051840. Its totient is φ = 148157280.

The previous prime is 190135249. The next prime is 190135271. The reversal of 190135253 is 352531091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190135253 - 22 = 190135249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190135243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234568 + ... + 1234721.

It is an arithmetic number, because the mean of its divisors is an integer number (29631480).

Almost surely, 2190135253 is an apocalyptic number.

It is an amenable number.

190135253 is a deficient number, since it is larger than the sum of its proper divisors (46916587).

190135253 is a wasteful number, since it uses less digits than its factorization.

190135253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469307.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 190135253 is about 13788.9540212447. The cubic root of 190135253 is about 575.0260887974.

The spelling of 190135253 in words is "one hundred ninety million, one hundred thirty-five thousand, two hundred fifty-three".

Divisors: 1 7 11 77 2469289 17285023 27162179 190135253