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4994381 = 72367463
BaseRepresentation
bin10011000011010101001101
3100101202000002
4103003111031
52234310011
6255014045
760310610
oct23032515
910352002
104994381
112901397
12180a325
13105b372
14940177
15689c3b
hex4c354d

4994381 has 16 divisors (see below), whose sum is σ = 6057984. Its totient is φ = 4024944.

The previous prime is 4994369. The next prime is 4994387. The reversal of 4994381 is 1834994.

It is not a de Polignac number, because 4994381 - 218 = 4732237 is a prime.

It is a super-2 number, since 2×49943812 = 49887683146322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 4994381 parts by 3160 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4994387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10556 + ... + 11018.

It is an arithmetic number, because the mean of its divisors is an integer number (378624).

Almost surely, 24994381 is an apocalyptic number.

It is an amenable number.

4994381 is a deficient number, since it is larger than the sum of its proper divisors (1063603).

4994381 is a wasteful number, since it uses less digits than its factorization.

4994381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 31104, while the sum is 38.

The square root of 4994381 is about 2234.8111777061. The cubic root of 4994381 is about 170.9335149585.

The spelling of 4994381 in words is "four million, nine hundred ninety-four thousand, three hundred eighty-one".

Divisors: 1 7 23 67 161 463 469 1541 3241 10649 10787 31021 74543 217147 713483 4994381