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40380911 = 831014817
BaseRepresentation
bin1001101000001…
…0100111101111
32210222120012022
42122002213233
540314142121
64001300355
71000142414
oct232024757
983876168
1040380911
112088085a
12116346bb
13849b03c
14551210b
153829aab
hex26829ef

40380911 has 8 divisors (see below), whose sum is σ = 41280624. Its totient is φ = 39491200.

The previous prime is 40380883. The next prime is 40380917. The reversal of 40380911 is 11908304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40380911 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 (40380917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5975 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (5160078).

Almost surely, 240380911 is an apocalyptic number.

40380911 is a deficient number, since it is larger than the sum of its proper divisors (899713).

40380911 is a wasteful number, since it uses less digits than its factorization.

40380911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 40380911 is about 6354.5976269155. The cubic root of 40380911 is about 343.0773426157.

The spelling of 40380911 in words is "forty million, three hundred eighty thousand, nine hundred eleven".

Divisors: 1 83 101 4817 8383 399811 486517 40380911