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190150890 = 23523275581
BaseRepresentation
bin10110101010101…
…11100011101010
3111020210122222120
423111113203222
5342134312030
630511332110
74466153526
oct1325274352
9436718876
10190150890
11983761a6
1253821036
1330519327
141b37ad86
1511a61010
hexb5578ea

190150890 has 32 divisors (see below), whose sum is σ = 476205696. Its totient is φ = 48502080.

The previous prime is 190150819. The next prime is 190150897. The reversal of 190150890 is 98051091.

It is not an unprimeable number, because it can be changed into a prime (190150897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137101 + ... + 138480.

It is an arithmetic number, because the mean of its divisors is an integer number (14881428).

Almost surely, 2190150890 is an apocalyptic number.

190150890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190150890 is an abundant number, since it is smaller than the sum of its proper divisors (286054806).

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

190150890 is a wasteful number, since it uses less digits than its factorization.

190150890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275614.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 190150890 is about 13789.5210214133. The cubic root of 190150890 is about 575.0418520261.

The spelling of 190150890 in words is "one hundred ninety million, one hundred fifty thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 275581 551162 826743 1377905 1653486 2755810 4133715 6338363 8267430 12676726 19015089 31691815 38030178 63383630 95075445 190150890