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190533812 = 22731227967
BaseRepresentation
bin10110101101101…
…01000010110100
3111021112010020212
423112311002310
5342234040222
630523444552
74502340110
oct1326650264
9437463225
10190533812
1198607967
1253986758
1330621701
141b43a740
1511ad96e2
hexb5b50b4

190533812 has 48 divisors (see below), whose sum is σ = 395501568. Its totient is φ = 78593760.

The previous prime is 190533803. The next prime is 190533823. The reversal of 190533812 is 218335091.

190533812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 196553 + ... + 197519.

It is an arithmetic number, because the mean of its divisors is an integer number (8239616).

Almost surely, 2190533812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190533812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197750784).

190533812 is an abundant number, since it is smaller than the sum of its proper divisors (204967756).

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

190533812 is a wasteful number, since it uses less digits than its factorization.

190533812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 190533812 is about 13803.3985670196. The cubic root of 190533812 is about 575.4275957415.

The spelling of 190533812 in words is "one hundred ninety million, five hundred thirty-three thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 28 31 62 124 217 227 434 454 868 908 967 1589 1934 3178 3868 6356 6769 7037 13538 14074 27076 28148 29977 49259 59954 98518 119908 197036 209839 219509 419678 439018 839356 878036 1536563 3073126 6146252 6804779 13609558 27219116 47633453 95266906 190533812