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190044936 = 23322639513
BaseRepresentation
bin10110101001111…
…01101100001000
3111020121021122100
423110331230020
5342122414221
630505153400
74465232604
oct1324755410
9436537570
10190044936
1198303634
125378b860
13304b0033
141b350504
1511a3e926
hexb53db08

190044936 has 24 divisors (see below), whose sum is σ = 514705230. Its totient is φ = 63348288.

The previous prime is 190044931. The next prime is 190044937. The reversal of 190044936 is 639440091.

190044936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 164096100 + 25948836 = 12810^2 + 5094^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1900449362 = 72234155398488192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 190044936.

It is not an unprimeable number, because it can be changed into a prime (190044931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1319685 + ... + 1319828.

Almost surely, 2190044936 is an apocalyptic number.

It is an amenable number.

190044936 is an abundant number, since it is smaller than the sum of its proper divisors (324660294).

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

190044936 is a wasteful number, since it uses less digits than its factorization.

190044936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639525 (or 2639518 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 190044936 is about 13785.6786557645. The cubic root of 190044936 is about 574.9350258026.

The spelling of 190044936 in words is "one hundred ninety million, forty-four thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2639513 5279026 7918539 10558052 15837078 21116104 23755617 31674156 47511234 63348312 95022468 190044936