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24254940 = 2235404249
BaseRepresentation
bin101110010000…
…1100111011100
31200122021112010
41130201213130
522202124230
62223511220
7413110053
oct134414734
950567463
1024254940
1112767106
128158510
135043048
14331539a
1521e19b0
hex17219dc

24254940 has 24 divisors (see below), whose sum is σ = 67914000. Its totient is φ = 6467968.

The previous prime is 24254921. The next prime is 24254941. The reversal of 24254940 is 4945242.

It is a super-2 number, since 2×242549402 = 1176604228807200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 24254898 and 24254907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24254941) by changing a digit.

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, 202065 + ... + 202184.

It is an arithmetic number, because the mean of its divisors is an integer number (2829750).

Almost surely, 224254940 is an apocalyptic number.

24254940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24254940 is an abundant number, since it is smaller than the sum of its proper divisors (43659060).

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

24254940 is a wasteful number, since it uses less digits than its factorization.

24254940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404261 (or 404259 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 24254940 is about 4924.9304563618. The cubic root of 24254940 is about 289.4676718832.

The spelling of 24254940 in words is "twenty-four million, two hundred fifty-four thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 404249 808498 1212747 1616996 2021245 2425494 4042490 4850988 6063735 8084980 12127470 24254940