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24420620 = 2257224919
BaseRepresentation
bin101110100101…
…0000100001100
31200221200210102
41131022010030
522222424440
62231230232
7414400100
oct135120414
950850712
1024420620
111286a634
128218378
1350a0593
143359900
152225b15
hex174a10c

24420620 has 36 divisors (see below), whose sum is σ = 59658480. Its totient is φ = 8372448.

The previous prime is 24420611. The next prime is 24420637. The reversal of 24420620 is 2602442.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24420592 and 24420601.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11480 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (1657180).

Almost surely, 224420620 is an apocalyptic number.

24420620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24420620 is an abundant number, since it is smaller than the sum of its proper divisors (35237860).

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

24420620 is a wasteful number, since it uses less digits than its factorization.

24420620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24942 (or 24933 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 24420620 is about 4941.7223718052. The cubic root of 24420620 is about 290.1252728691.

The spelling of 24420620 in words is "twenty-four million, four hundred twenty thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 24919 49838 99676 124595 174433 249190 348866 498380 697732 872165 1221031 1744330 2442062 3488660 4884124 6105155 12210310 24420620