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40930579 = 192154241
BaseRepresentation
bin1001110000100…
…0110100010011
32212000111012101
42130020310103
540434234304
64021141231
71004622064
oct234106423
985014171
1040930579
1121116828
121185a817
1386312a1
14561656b
1538d78a4
hex2708d13

40930579 has 4 divisors (see below), whose sum is σ = 43084840. Its totient is φ = 38776320.

The previous prime is 40930567. The next prime is 40930583. The reversal of 40930579 is 97503904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40930579 - 215 = 40897811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40930529) 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 3 ways as a sum of consecutive naturals, for example, 1077102 + ... + 1077139.

It is an arithmetic number, because the mean of its divisors is an integer number (10771210).

Almost surely, 240930579 is an apocalyptic number.

40930579 is a deficient number, since it is larger than the sum of its proper divisors (2154261).

40930579 is a wasteful number, since it uses less digits than its factorization.

40930579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154260.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 40930579 is about 6397.7010714787. The cubic root of 40930579 is about 344.6269972731.

The spelling of 40930579 in words is "forty million, nine hundred thirty thousand, five hundred seventy-nine".

Divisors: 1 19 2154241 40930579