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190116478 = 2449211711
BaseRepresentation
bin10110101010011…
…11001001111110
3111020201220210001
423111033021332
5342132211403
630510504514
74465651306
oct1325171176
9436656701
10190116478
1198352362
125380513a
1330506776
141b36c606
1511a55c1d
hexb54f27e

190116478 has 8 divisors (see below), whose sum is σ = 285811200. Its totient is φ = 94846080.

The previous prime is 190116463. The next prime is 190116497. The reversal of 190116478 is 874611091.

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

It is a super-2 number, since 2×1901164782 = 72288550414248968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 104958 + ... + 106753.

It is an arithmetic number, because the mean of its divisors is an integer number (35726400).

Almost surely, 2190116478 is an apocalyptic number.

190116478 is a deficient number, since it is larger than the sum of its proper divisors (95694722).

190116478 is a wasteful number, since it uses less digits than its factorization.

190116478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212162.

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

The square root of 190116478 is about 13788.2732058804. The cubic root of 190116478 is about 575.0071610954.

The spelling of 190116478 in words is "one hundred ninety million, one hundred sixteen thousand, four hundred seventy-eight".

Divisors: 1 2 449 898 211711 423422 95058239 190116478