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24240340 = 2251212017
BaseRepresentation
bin101110001111…
…0000011010100
31200121112111101
41130132003110
522201142330
62223315444
7413016355
oct134360324
950545441
1024240340
1112757143
12814bb84
1350394c7
14330dd2c
1521dc4ca
hex171e0d4

24240340 has 12 divisors (see below), whose sum is σ = 50904756. Its totient is φ = 9696128.

The previous prime is 24240331. The next prime is 24240341. The reversal of 24240340 is 4304242.

It can be written as a sum of positive squares in 2 ways, for example, as 11751184 + 12489156 = 3428^2 + 3534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24240341) 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, 605989 + ... + 606028.

It is an arithmetic number, because the mean of its divisors is an integer number (4242063).

Almost surely, 224240340 is an apocalyptic number.

24240340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24240340 is an abundant number, since it is smaller than the sum of its proper divisors (26664416).

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

24240340 is a wasteful number, since it uses less digits than its factorization.

24240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212026 (or 1212024 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 24240340 is about 4923.4479788051. The cubic root of 24240340 is about 289.4095795761.

Adding to 24240340 its reverse (4304242), we get a palindrome (28544582).

The spelling of 24240340 in words is "twenty-four million, two hundred forty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1212017 2424034 4848068 6060085 12120170 24240340