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406768323 = 31367155671
BaseRepresentation
bin11000001111101…
…100101011000011
31001100101222020110
4120033230223003
51313113041243
6104210242403
713036321323
oct3017545303
91040358213
10406768323
11199679075
12b4286403
1366371220
143c047283
1525a9de33
hex183ecac3

406768323 has 16 divisors (see below), whose sum is σ = 592798976. Its totient is φ = 246581280.

The previous prime is 406768319. The next prime is 406768357. The reversal of 406768323 is 323867604.

It is not a de Polignac number, because 406768323 - 22 = 406768319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406768223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75223 + ... + 80448.

It is an arithmetic number, because the mean of its divisors is an integer number (37049936).

Almost surely, 2406768323 is an apocalyptic number.

406768323 is a deficient number, since it is larger than the sum of its proper divisors (186030653).

406768323 is a wasteful number, since it uses less digits than its factorization.

406768323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155754.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 406768323 is about 20168.4982832138. The cubic root of 406768323 is about 740.9388637204.

It can be divided in two parts, 4067 and 68323, that added together give a triangular number (72390 = T380).

The spelling of 406768323 in words is "four hundred six million, seven hundred sixty-eight thousand, three hundred twenty-three".

Divisors: 1 3 13 39 67 201 871 2613 155671 467013 2023723 6071169 10429957 31289871 135589441 406768323