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190822493 = 1993312897
BaseRepresentation
bin10110101111110…
…11100001011101
3111022001210020202
423113323201131
5342322304433
630533553245
74504651541
oct1327734135
9438053222
10190822493
1198794844
1253aa5825
13306c2c24
141b4b3a21
1511b44ee8
hexb5fb85d

190822493 has 8 divisors (see below), whose sum is σ = 192427200. Its totient is φ = 189224640.

The previous prime is 190822469. The next prime is 190822507. The reversal of 190822493 is 394228091.

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 190822493 - 220 = 189773917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190822193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64421 + ... + 67317.

It is an arithmetic number, because the mean of its divisors is an integer number (24053400).

Almost surely, 2190822493 is an apocalyptic number.

It is an amenable number.

190822493 is a deficient number, since it is larger than the sum of its proper divisors (1604707).

190822493 is a wasteful number, since it uses less digits than its factorization.

190822493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 190822493 is about 13813.8514904425. The cubic root of 190822493 is about 575.7180624536.

The spelling of 190822493 in words is "one hundred ninety million, eight hundred twenty-two thousand, four hundred ninety-three".

Divisors: 1 199 331 2897 65869 576503 958907 190822493