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7234420 = 2252315727
BaseRepresentation
bin11011100110001101110100
3111121112202111
4123212031310
53323000140
6415020404
7115330414
oct33461564
914545674
107234420
1140a1366
12250a704
131663b2b
14d64644
1597d7ea
hex6e6374

7234420 has 24 divisors (see below), whose sum is σ = 15853824. Its totient is φ = 2767776.

The previous prime is 7234399. The next prime is 7234433. The reversal of 7234420 is 244327.

It is a junction number, because it is equal to n+sod(n) for n = 7234391 and 7234400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7404 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (660576).

Almost surely, 27234420 is an apocalyptic number.

It is an amenable number.

7234420 is an abundant number, since it is smaller than the sum of its proper divisors (8619404).

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

7234420 is a wasteful number, since it uses less digits than its factorization.

7234420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15759 (or 15757 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 7234420 is about 2689.6877142152. The cubic root of 7234420 is about 193.4050929283.

Adding to 7234420 its reverse (244327), we get a palindrome (7478747).

The spelling of 7234420 in words is "seven million, two hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 15727 31454 62908 78635 157270 314540 361721 723442 1446884 1808605 3617210 7234420