Search a number
-
+
451506370231 = 7222807404017
BaseRepresentation
bin1101001000111111110…
…00000111011010110111
31121011102020220002002201
412210133320013122313
524344141112321411
6543230312245331
744422514552500
oct6443770073267
91534366802081
10451506370231
11164534636724
12736086a0847
13337664c09a7
1417bd29b3ba7
15bb286453c1
hex691fe076b7

451506370231 has 12 divisors (see below), whose sum is σ = 525246025008. Its totient is φ = 386987533632.

The previous prime is 451506370207. The next prime is 451506370241. The reversal of 451506370231 is 132073605154.

It is not a de Polignac number, because 451506370231 - 215 = 451506337463 is a prime.

It is a super-2 number, since 2×4515063702312 (a number of 24 digits) 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 (451506370241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915535 + ... + 1319551.

It is an arithmetic number, because the mean of its divisors is an integer number (43770502084).

Almost surely, 2451506370231 is an apocalyptic number.

451506370231 is a deficient number, since it is larger than the sum of its proper divisors (73739654777).

451506370231 is a wasteful number, since it uses less digits than its factorization.

451506370231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426838 (or 426831 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

Adding to 451506370231 its reverse (132073605154), we get a palindrome (583579975385).

The spelling of 451506370231 in words is "four hundred fifty-one billion, five hundred six million, three hundred seventy thousand, two hundred thirty-one".

Divisors: 1 7 49 22807 159649 404017 1117543 2828119 19796833 9214415719 64500910033 451506370231