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3744981 = 331741199
BaseRepresentation
bin1110010010010011010101
321001021011000
432102103111
51424314411
6212133513
743555212
oct16222325
97037130
103744981
112128729
121307299
13a11786
146d6b09
154de956
hex3924d5

3744981 has 32 divisors (see below), whose sum is σ = 6048000. Its totient is φ = 2280960.

The previous prime is 3744971. The next prime is 3744991. The reversal of 3744981 is 1894473.

It is a happy number.

3744981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3744971) and next prime (3744991).

It is not a de Polignac number, because 3744981 - 211 = 3742933 is a prime.

It is a super-2 number, since 2×37449812 = 28049765380722, which contains 22 as substring.

3744981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3744941) 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 31 ways as a sum of consecutive naturals, for example, 18720 + ... + 18918.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 23744981 is an apocalyptic number.

It is an amenable number.

3744981 is a deficient number, since it is larger than the sum of its proper divisors (2303019).

3744981 is a wasteful number, since it uses less digits than its factorization.

3744981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3744981 is about 1935.1953389774. The cubic root of 3744981 is about 155.2922823525.

The spelling of 3744981 in words is "three million, seven hundred forty-four thousand, nine hundred eighty-one".

Divisors: 1 3 9 17 27 41 51 123 153 199 369 459 597 697 1107 1791 2091 3383 5373 6273 8159 10149 18819 24477 30447 73431 91341 138703 220293 416109 1248327 3744981