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190231633 is a prime number
BaseRepresentation
bin10110101011010…
…11010001010001
3111020221202202001
423111223101101
5342144403013
630513154001
74466641114
oct1325532121
9436852661
10190231633
1198420929
125385b901
1330546cc7
141b39c57b
1511a79ddd
hexb56b451

190231633 has 2 divisors, whose sum is σ = 190231634. Its totient is φ = 190231632.

The previous prime is 190231631. The next prime is 190231651. The reversal of 190231633 is 336132091.

190231633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150503824 + 39727809 = 12268^2 + 6303^2 .

It is a cyclic number.

It is not a de Polignac number, because 190231633 - 21 = 190231631 is a prime.

Together with 190231631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (190231631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95115816 + 95115817.

It is an arithmetic number, because the mean of its divisors is an integer number (95115817).

Almost surely, 2190231633 is an apocalyptic number.

It is an amenable number.

190231633 is a deficient number, since it is larger than the sum of its proper divisors (1).

190231633 is an equidigital number, since it uses as much as digits as its factorization.

190231633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 190231633 is about 13792.4484048337. The cubic root of 190231633 is about 575.1232330703.

The spelling of 190231633 in words is "one hundred ninety million, two hundred thirty-one thousand, six hundred thirty-three".