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190118801 is a prime number
BaseRepresentation
bin10110101010011…
…11101110010001
3111020202000222002
423111033232101
5342132300201
630510523345
74465661135
oct1325175621
9436660862
10190118801
1198354084
1253806555
1330507842
141b36d3c5
1511a5676b
hexb54fb91

190118801 has 2 divisors, whose sum is σ = 190118802. Its totient is φ = 190118800.

The previous prime is 190118783. The next prime is 190118813. The reversal of 190118801 is 108811091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145829776 + 44289025 = 12076^2 + 6655^2 .

It is a cyclic number.

It is not a de Polignac number, because 190118801 - 26 = 190118737 is a prime.

It is a super-2 number, since 2×1901188012 = 72290316987355202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190118881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95059400 + 95059401.

It is an arithmetic number, because the mean of its divisors is an integer number (95059401).

Almost surely, 2190118801 is an apocalyptic number.

It is an amenable number.

190118801 is a deficient number, since it is larger than the sum of its proper divisors (1).

190118801 is an equidigital number, since it uses as much as digits as its factorization.

190118801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 29.

The square root of 190118801 is about 13788.3574438727. The cubic root of 190118801 is about 575.0095030566.

Adding to 190118801 its reverse (108811091), we get a palindrome (298929892).

It can be divided in two parts, 1901 and 18801, that added together give a palindrome (20702).

The spelling of 190118801 in words is "one hundred ninety million, one hundred eighteen thousand, eight hundred one".