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190797284 = 2247699321
BaseRepresentation
bin10110101111101…
…01010111100100
3111022000111200002
423113311113210
5342321003114
630533240432
74504515206
oct1327652744
9438014602
10190797284
1198777907
1253a93118
13306b4602
141b4a8776
1511b3c7de
hexb5f55e4

190797284 has 6 divisors (see below), whose sum is σ = 333895254. Its totient is φ = 95398640.

The previous prime is 190797247. The next prime is 190797301. The reversal of 190797284 is 482797091.

It can be written as a sum of positive squares in only one way, i.e., 181494784 + 9302500 = 13472^2 + 3050^2 .

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 as a sum of consecutive naturals, namely, 23849657 + ... + 23849664.

It is an arithmetic number, because the mean of its divisors is an integer number (55649209).

Almost surely, 2190797284 is an apocalyptic number.

It is an amenable number.

190797284 is a deficient number, since it is larger than the sum of its proper divisors (143097970).

190797284 is a wasteful number, since it uses less digits than its factorization.

190797284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47699325 (or 47699323 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 190797284 is about 13812.9390065981. The cubic root of 190797284 is about 575.6927091954.

The spelling of 190797284 in words is "one hundred ninety million, seven hundred ninety-seven thousand, two hundred eighty-four".

Divisors: 1 2 4 47699321 95398642 190797284