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422454 = 23181389
BaseRepresentation
bin1100111001000110110
3210110111110
41213020312
5102004304
613015450
73406434
oct1471066
9713443
10422454
1126943a
12184586
1311a396
14add54
1585289
hex67236

422454 has 16 divisors (see below), whose sum is σ = 851760. Its totient is φ = 139680.

The previous prime is 422453. The next prime is 422459. The reversal of 422454 is 454224.

It is a super-3 number, since 3×4224543 = 226182778333297992, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (53235).

2422454 is an apocalyptic number.

422454 is an abundant number, since it is smaller than the sum of its proper divisors (429306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422454 is a wasteful number, since it uses less digits than its factorization.

422454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 1280, while the sum is 21.

The square root of 422454 is about 649.9646144214. The cubic root of 422454 is about 75.0342954264.

Adding to 422454 its reverse (454224), we get a palindrome (876678).

It can be divided in two parts, 4224 and 54, that added together give a triangular number (4278 = T92).

The spelling of 422454 in words is "four hundred twenty-two thousand, four hundred fifty-four".

Divisors: 1 2 3 6 181 362 389 543 778 1086 1167 2334 70409 140818 211227 422454