Search a number
-
+
478367449 = 7231131391
BaseRepresentation
bin11100100000110…
…100111011011001
31020100010120202221
4130200310323121
51434430224244
6115245024041
714566025200
oct3440647331
91210116687
10478367449
112260315aa
12114255021
137814c881
1447764237
152bee3784
hex1c834ed9

478367449 has 12 divisors (see below), whose sum is σ = 558275328. Its totient is φ = 408697800.

The previous prime is 478367447. The next prime is 478367507. The reversal of 478367449 is 944763874.

It is not a de Polignac number, because 478367449 - 21 = 478367447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478367396 and 478367405.

It is not an unprimeable number, because it can be changed into a prime (478367447) 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, 457 + ... + 30934.

It is an arithmetic number, because the mean of its divisors is an integer number (46522944).

Almost surely, 2478367449 is an apocalyptic number.

478367449 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

478367449 is a deficient number, since it is larger than the sum of its proper divisors (79907879).

478367449 is a wasteful number, since it uses less digits than its factorization.

478367449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31716 (or 31709 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The square root of 478367449 is about 21871.6128577661. The cubic root of 478367449 is about 782.0848503679.

The spelling of 478367449 in words is "four hundred seventy-eight million, three hundred sixty-seven thousand, four hundred forty-nine".

Divisors: 1 7 49 311 2177 15239 31391 219737 1538159 9762601 68338207 478367449