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2440048381 = 19474675851
BaseRepresentation
bin1001000101110000…
…0010111011111101
320022001101022010021
42101130002323331
514444123022011
61042042412141
7114316032451
oct22134027375
96261338107
102440048381
111042386511
12581201051
132cb69b514
141920c6661
15e4337471
hex91702efd

2440048381 has 16 divisors (see below), whose sum is σ = 2629186560. Its totient is φ = 2257210800.

The previous prime is 2440048379. The next prime is 2440048393. The reversal of 2440048381 is 1838400442.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2440048381 - 21 = 2440048379 is a prime.

It is a super-2 number, since 2×24400483812 = 11907672203241442322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440948381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414106 + ... + 419956.

It is an arithmetic number, because the mean of its divisors is an integer number (164324160).

Almost surely, 22440048381 is an apocalyptic number.

It is an amenable number.

2440048381 is a deficient number, since it is larger than the sum of its proper divisors (189138179).

2440048381 is a wasteful number, since it uses less digits than its factorization.

2440048381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 2440048381 is about 49396.8458608442. The cubic root of 2440048381 is about 1346.2719974209.

The spelling of 2440048381 in words is "two billion, four hundred forty million, forty-eight thousand, three hundred eighty-one".

Divisors: 1 19 47 467 893 5851 8873 21949 111169 274997 417031 2732417 5224943 51915923 128423599 2440048381