Search a number
-
+
465216031 = 7199337991
BaseRepresentation
bin11011101110101…
…010001000011111
31012102101102102101
4123232222020133
51423043403111
6114055105531
714346161650
oct3356521037
91172342371
10465216031
11219669765
1210b9722a7
13754c6777
1445add527
152ac96bc1
hex1bbaa21f

465216031 has 16 divisors (see below), whose sum is σ = 536473600. Its totient is φ = 395176320.

The previous prime is 465216029. The next prime is 465216047. The reversal of 465216031 is 130612564.

It is not a de Polignac number, because 465216031 - 21 = 465216029 is a prime.

It is a super-2 number, since 2×4652160312 = 432851910998785922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465216001) 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 15 ways as a sum of consecutive naturals, for example, 468946 + ... + 469936.

It is an arithmetic number, because the mean of its divisors is an integer number (33529600).

Almost surely, 2465216031 is an apocalyptic number.

465216031 is a deficient number, since it is larger than the sum of its proper divisors (71257569).

465216031 is a wasteful number, since it uses less digits than its factorization.

465216031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 465216031 is about 21568.8671700671. The cubic root of 465216031 is about 774.8510465033.

Adding to 465216031 its reverse (130612564), we get a palindrome (595828595).

The spelling of 465216031 in words is "four hundred sixty-five million, two hundred sixteen thousand, thirty-one".

Divisors: 1 7 199 337 991 1393 2359 6937 67063 197209 333967 469441 1380463 2337769 66459433 465216031