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40893079 = 311131489
BaseRepresentation
bin1001101111111…
…1101010010111
32211221120202111
42123333222113
540432034304
64020251451
71004404543
oct233775227
984846674
1040893079
11210a0637
1211840b87
13861a1b6
145606a23
1538cb704
hex26ffa97

40893079 has 4 divisors (see below), whose sum is σ = 41024880. Its totient is φ = 40761280.

The previous prime is 40893019. The next prime is 40893101. The reversal of 40893079 is 97039804.

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 40893079 - 215 = 40860311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40893019) 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, 65434 + ... + 66055.

It is an arithmetic number, because the mean of its divisors is an integer number (10256220).

Almost surely, 240893079 is an apocalyptic number.

40893079 is a deficient number, since it is larger than the sum of its proper divisors (131801).

40893079 is a wasteful number, since it uses less digits than its factorization.

40893079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131800.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 40893079 is about 6394.7696596515. The cubic root of 40893079 is about 344.5217177037.

The spelling of 40893079 in words is "forty million, eight hundred ninety-three thousand, seventy-nine".

Divisors: 1 311 131489 40893079