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189768804 = 22343616029
BaseRepresentation
bin10110100111110…
…10010001100100
3111020002020212020
423103322101210
5342040100204
630455223140
74463002551
oct1323722144
9436066766
10189768804
1198135125
1253677ab0
1330414444
141b2bba28
15119d7bd9
hexb4fa464

189768804 has 48 divisors (see below), whose sum is σ = 460595520. Its totient is φ = 60762240.

The previous prime is 189768781. The next prime is 189768851. The reversal of 189768804 is 408867981.

189768804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 28462 + ... + 34490.

It is an arithmetic number, because the mean of its divisors is an integer number (9595740).

Almost surely, 2189768804 is an apocalyptic number.

It is an amenable number.

189768804 is an abundant number, since it is smaller than the sum of its proper divisors (270826716).

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

189768804 is a wasteful number, since it uses less digits than its factorization.

189768804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140 (or 6138 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 189768804 is about 13775.6598390059. The cubic root of 189768804 is about 574.6564339515.

The spelling of 189768804 in words is "one hundred eighty-nine million, seven hundred sixty-eight thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 43 61 86 122 129 172 183 244 258 366 516 732 2623 5246 6029 7869 10492 12058 15738 18087 24116 31476 36174 72348 259247 367769 518494 735538 777741 1036988 1103307 1471076 1555482 2206614 3110964 4413228 15814067 31628134 47442201 63256268 94884402 189768804