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24979242 = 2323315839
BaseRepresentation
bin101111101001…
…0011100101010
31202000002002010
41133102130222
522343313432
62251220350
7422214531
oct137223452
952002063
1024979242
1113111302
1284476b6
135237922
143463318
1522d63cc
hex17d272a

24979242 has 32 divisors (see below), whose sum is σ = 53821440. Its totient is φ = 7706160.

The previous prime is 24979223. The next prime is 24979277. The reversal of 24979242 is 24297942.

It is a super-3 number, since 3×249792423 (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 24979242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1359 + ... + 7197.

It is an arithmetic number, because the mean of its divisors is an integer number (1681920).

Almost surely, 224979242 is an apocalyptic number.

24979242 is an abundant number, since it is smaller than the sum of its proper divisors (28842198).

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

24979242 is a wasteful number, since it uses less digits than its factorization.

24979242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898.

The product of its digits is 72576, while the sum is 39.

The square root of 24979242 is about 4997.9237689265. The cubic root of 24979242 is about 292.3208223983.

The spelling of 24979242 in words is "twenty-four million, nine hundred seventy-nine thousand, two hundred forty-two".

Divisors: 1 2 3 6 23 31 46 62 69 93 138 186 713 1426 2139 4278 5839 11678 17517 35034 134297 181009 268594 362018 402891 543027 805782 1086054 4163207 8326414 12489621 24979242