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40830481 = 173836271
BaseRepresentation
bin1001101111000…
…0011000010001
32211211101220001
42123300120101
540423033411
64015050001
71004024206
oct233603021
984741801
1040830481
11210585aa
1211810901
1385c7863
1455cbcad
1538b7dc1
hex26f0611

40830481 has 8 divisors (see below), whose sum is σ = 43352064. Its totient is φ = 38322240.

The previous prime is 40830443. The next prime is 40830509. The reversal of 40830481 is 18403804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40830481 - 27 = 40830353 is a prime.

It is a super-2 number, since 2×408304812 = 3334256357382722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40830401) 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 7 ways as a sum of consecutive naturals, for example, 3376 + ... + 9646.

It is an arithmetic number, because the mean of its divisors is an integer number (5419008).

Almost surely, 240830481 is an apocalyptic number.

It is an amenable number.

40830481 is a deficient number, since it is larger than the sum of its proper divisors (2521583).

40830481 is a wasteful number, since it uses less digits than its factorization.

40830481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40830481 is about 6389.8733164281. The cubic root of 40830481 is about 344.3458331386.

The spelling of 40830481 in words is "forty million, eight hundred thirty thousand, four hundred eighty-one".

Divisors: 1 17 383 6271 6511 106607 2401793 40830481