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40574071 = 311308841
BaseRepresentation
bin1001101011000…
…1110001110111
32211100101011101
42122301301313
540341332241
64005350531
71001605516
oct232616167
984311141
1040574071
11209a299a
1211708447
138537c35
14556267d
153866e31
hex26b1c77

40574071 has 4 divisors (see below), whose sum is σ = 41882944. Its totient is φ = 39265200.

The previous prime is 40574059. The next prime is 40574081. The reversal of 40574071 is 17047504.

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 40574071 - 217 = 40442999 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 (40574021) 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, 654390 + ... + 654451.

It is an arithmetic number, because the mean of its divisors is an integer number (10470736).

Almost surely, 240574071 is an apocalyptic number.

40574071 is a deficient number, since it is larger than the sum of its proper divisors (1308873).

40574071 is a wasteful number, since it uses less digits than its factorization.

40574071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308872.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 40574071 is about 6369.7779396145. Note that the first 3 decimals coincide. The cubic root of 40574071 is about 343.6235036051.

It can be divided in two parts, 4057 and 4071, that added together give a triangular number (8128 = T127).

The spelling of 40574071 in words is "forty million, five hundred seventy-four thousand, seventy-one".

Divisors: 1 31 1308841 40574071