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190538794 = 21972811721
BaseRepresentation
bin10110101101101…
…10010000101010
3111021112101002101
423112312100222
5342234220134
630523524014
74502360455
oct1326662052
9437471071
10190538794
1198610686
125398960a
1330623a64
141b43c49c
1511adae14
hexb5b642a

190538794 has 16 divisors (see below), whose sum is σ = 288448776. Its totient is φ = 94393600.

The previous prime is 190538791. The next prime is 190538801. The reversal of 190538794 is 497835091.

It is a happy number.

190538794 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 4 ways, for example, as 186677569 + 3861225 = 13663^2 + 1965^2 .

It is not an unprimeable number, because it can be changed into a prime (190538791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109854 + ... + 111574.

Almost surely, 2190538794 is an apocalyptic number.

190538794 is a deficient number, since it is larger than the sum of its proper divisors (97909982).

190538794 is a wasteful number, since it uses less digits than its factorization.

190538794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 190538794 is about 13803.5790286433. The cubic root of 190538794 is about 575.4326110460.

The spelling of 190538794 in words is "one hundred ninety million, five hundred thirty-eight thousand, seven hundred ninety-four".

Divisors: 1 2 197 281 394 562 1721 3442 55357 110714 339037 483601 678074 967202 95269397 190538794