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194719030 = 251119151617
BaseRepresentation
bin10111001101100…
…10110100110110
3111120101202021221
423212302310312
5344322002110
631153300554
74553040652
oct1346626466
9446352257
10194719030
119aa06320
125526475a
133145867c
141bc09a62
15121647da
hexb9b2d36

194719030 has 64 divisors (see below), whose sum is σ = 405803520. Its totient is φ = 66528000.

The previous prime is 194719027. The next prime is 194719099. The reversal of 194719030 is 30917491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315282 + ... + 315898.

It is an arithmetic number, because the mean of its divisors is an integer number (6340680).

Almost surely, 2194719030 is an apocalyptic number.

194719030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194719030 is an abundant number, since it is smaller than the sum of its proper divisors (211084490).

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

194719030 is a wasteful number, since it uses less digits than its factorization.

194719030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 194719030 is about 13954.1760774329. The cubic root of 194719030 is about 579.6103506548.

The spelling of 194719030 in words is "one hundred ninety-four million, seven hundred nineteen thousand, thirty".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 151 190 209 302 418 617 755 1045 1234 1510 1661 2090 2869 3085 3322 5738 6170 6787 8305 11723 13574 14345 16610 23446 28690 31559 33935 58615 63118 67870 93167 117230 128953 157795 186334 257906 315590 465835 644765 931670 1024837 1289530 1770173 2049674 3540346 5124185 8850865 10248370 17701730 19471903 38943806 97359515 194719030