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40022047 = 1323133853
BaseRepresentation
bin1001100010101…
…1000000011111
32210022022221001
42120223000133
540221201142
63545451131
7664116232
oct230530037
983268831
1040022047
112065617a
12114a0aa7
1383a38b0
14545b419
1537a85b7
hex262b01f

40022047 has 8 divisors (see below), whose sum is σ = 44974944. Its totient is φ = 35336928.

The previous prime is 40022041. The next prime is 40022053. The reversal of 40022047 is 74022004.

It is an interprime number because it is at equal distance from previous prime (40022041) and next prime (40022053).

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-40022047 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 (40022041) 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, 66628 + ... + 67225.

It is an arithmetic number, because the mean of its divisors is an integer number (5621868).

Almost surely, 240022047 is an apocalyptic number.

40022047 is a deficient number, since it is larger than the sum of its proper divisors (4952897).

40022047 is a wasteful number, since it uses less digits than its factorization.

40022047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133889.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 40022047 is about 6326.2980486221. The cubic root of 40022047 is about 342.0580108610.

The spelling of 40022047 in words is "forty million, twenty-two thousand, forty-seven".

Divisors: 1 13 23 299 133853 1740089 3078619 40022047