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4837981 = 23210347
BaseRepresentation
bin10010011101001001011101
3100002210110111
4102131021131
52214303411
6251410021
756056621
oct22351135
910083414
104837981
112804935
121753911
131005115
148dd181
15658721
hex49d25d

4837981 has 4 divisors (see below), whose sum is σ = 5048352. Its totient is φ = 4627612.

The previous prime is 4837969. The next prime is 4837991. The reversal of 4837981 is 1897384.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4837981 - 27 = 4837853 is a prime.

It is a super-2 number, since 2×48379812 = 46812120312722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4837991) 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, 105151 + ... + 105196.

It is an arithmetic number, because the mean of its divisors is an integer number (1262088).

Almost surely, 24837981 is an apocalyptic number.

It is an amenable number.

4837981 is a deficient number, since it is larger than the sum of its proper divisors (210371).

4837981 is a wasteful number, since it uses less digits than its factorization.

4837981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210370.

The product of its digits is 48384, while the sum is 40.

The square root of 4837981 is about 2199.5410885001. The cubic root of 4837981 is about 169.1302871234.

It can be divided in two parts, 483 and 7981, that added together give a square (8464 = 922).

The spelling of 4837981 in words is "four million, eight hundred thirty-seven thousand, nine hundred eighty-one".

Divisors: 1 23 210347 4837981