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190027454 = 2129173597
BaseRepresentation
bin10110101001110…
…01011010111110
3111020120101122212
423110321122332
5342121334304
630504540422
74465130621
oct1324713276
9436511585
10190027454
11982a1491
1253781712
13304a50a6
141b347db8
1511a3966e
hexb5396be

190027454 has 8 divisors (see below), whose sum is σ = 285265848. Its totient is φ = 94938840.

The previous prime is 190027447. The next prime is 190027471. The reversal of 190027454 is 454720091.

It is a happy number.

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

It is a super-2 number, since 2×1900274542 = 72220866547444232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190027454.

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, 34217 + ... + 39380.

It is an arithmetic number, because the mean of its divisors is an integer number (35658231).

Almost surely, 2190027454 is an apocalyptic number.

190027454 is a deficient number, since it is larger than the sum of its proper divisors (95238394).

190027454 is a wasteful number, since it uses less digits than its factorization.

190027454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74890.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 190027454 is about 13785.0445773672. The cubic root of 190027454 is about 574.9173960733.

The spelling of 190027454 in words is "one hundred ninety million, twenty-seven thousand, four hundred fifty-four".

Divisors: 1 2 1291 2582 73597 147194 95013727 190027454