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3454420 = 225172721
BaseRepresentation
bin1101001011010111010100
320111111120111
431023113110
51341020140
6202012404
741235124
oct15132724
96444514
103454420
111a4a3a2
1211a7104
1393c448
1465cc84
154837ea
hex34b5d4

3454420 has 12 divisors (see below), whose sum is σ = 7254324. Its totient is φ = 1381760.

The previous prime is 3454403. The next prime is 3454421. The reversal of 3454420 is 244543.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 2676496 = 882^2 + 1636^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3454391 and 3454400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3454421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86341 + ... + 86380.

It is an arithmetic number, because the mean of its divisors is an integer number (604527).

Almost surely, 23454420 is an apocalyptic number.

It is an amenable number.

3454420 is an abundant number, since it is smaller than the sum of its proper divisors (3799904).

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

3454420 is a wasteful number, since it uses less digits than its factorization.

3454420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172730 (or 172728 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 3454420 is about 1858.6070052596. The cubic root of 3454420 is about 151.1674822524.

Adding to 3454420 its reverse (244543), we get a palindrome (3698963).

The spelling of 3454420 in words is "three million, four hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 172721 345442 690884 863605 1727210 3454420