Search a number
-
+
290101131 = 32311039789
BaseRepresentation
bin10001010010101…
…001011110001011
3202012212122221100
4101102221132023
51043231214011
644441512443
710121550615
oct2122513613
9665778840
10290101131
11139833301
12811a2723
1348143298
142a757db5
151a705d56
hex114a978b

290101131 has 12 divisors (see below), whose sum is σ = 432552640. Its totient is φ = 187161840.

The previous prime is 290101129. The next prime is 290101151. The reversal of 290101131 is 131101092.

It is not a de Polignac number, because 290101131 - 21 = 290101129 is a prime.

It is a super-2 number, since 2×2901011312 = 168317332414958322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290101151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519616 + ... + 520173.

Almost surely, 2290101131 is an apocalyptic number.

290101131 is a deficient number, since it is larger than the sum of its proper divisors (142451509).

290101131 is a wasteful number, since it uses less digits than its factorization.

290101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039826 (or 1039823 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 290101131 is about 17032.3554155026. The cubic root of 290101131 is about 661.9875280217.

The spelling of 290101131 in words is "two hundred ninety million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 3 9 31 93 279 1039789 3119367 9358101 32233459 96700377 290101131