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190204530 = 23531204521
BaseRepresentation
bin10110101011001…
…00101001110010
3111020220101120020
423111210221302
5342143021110
630512424310
74466466105
oct1325445162
9436811506
10190204530
119840252a
1253848096
1330537879
141b39273c
1511a71d70
hexb564a72

190204530 has 32 divisors (see below), whose sum is σ = 471218688. Its totient is φ = 49084800.

The previous prime is 190204529. The next prime is 190204541. The reversal of 190204530 is 35402091.

190204530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 190204530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101331 + ... + 103190.

It is an arithmetic number, because the mean of its divisors is an integer number (14725584).

Almost surely, 2190204530 is an apocalyptic number.

190204530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190204530 is an abundant number, since it is smaller than the sum of its proper divisors (281014158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190204530 is a wasteful number, since it uses less digits than its factorization.

190204530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204562.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 190204530 is about 13791.4658394240. The cubic root of 190204530 is about 575.0959184660.

The spelling of 190204530 in words is "one hundred ninety million, two hundred four thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 204521 409042 613563 1022605 1227126 2045210 3067815 6135630 6340151 12680302 19020453 31700755 38040906 63401510 95102265 190204530