Search a number
-
+
233020131 = 3514715091
BaseRepresentation
bin11011110001110…
…01101011100011
3121020110122112020
431320321223203
5434123121011
635042232523
75526431661
oct1570715343
9536418466
10233020131
1110a596523
1266055743
1339378b46
1422d39c31
15156cd006
hexde39ae3

233020131 has 8 divisors (see below), whose sum is σ = 310774464. Its totient is φ = 155306280.

The previous prime is 233020129. The next prime is 233020157. The reversal of 233020131 is 131020332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 233020131 - 21 = 233020129 is a prime.

It is a super-2 number, since 2×2330201312 = 108596762902514322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 233020131.

It is not an unprimeable number, because it can be changed into a prime (233020181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896 + ... + 22986.

It is an arithmetic number, because the mean of its divisors is an integer number (38846808).

Almost surely, 2233020131 is an apocalyptic number.

233020131 is a deficient number, since it is larger than the sum of its proper divisors (77754333).

233020131 is a wasteful number, since it uses less digits than its factorization.

233020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20241.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 233020131 is about 15264.9969210609. The cubic root of 233020131 is about 615.3626706145.

Adding to 233020131 its reverse (131020332), we get a palindrome (364040463).

The spelling of 233020131 in words is "two hundred thirty-three million, twenty thousand, one hundred thirty-one".

Divisors: 1 3 5147 15091 15441 45273 77673377 233020131