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40230070 = 254638689
BaseRepresentation
bin1001100101110…
…1110010110110
32210200220021121
42121131302312
540244330240
63554134154
7665643556
oct231356266
983626247
1040230070
11207884a1
121158135a
13844749a
1454b3166
1537ea04a
hex265dcb6

40230070 has 16 divisors (see below), whose sum is σ = 72578880. Its totient is φ = 16055424.

The previous prime is 40230053. The next prime is 40230079. The reversal of 40230070 is 7003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230079) 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, 286 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (4536180).

Almost surely, 240230070 is an apocalyptic number.

40230070 is a deficient number, since it is larger than the sum of its proper divisors (32348810).

40230070 is a wasteful number, since it uses less digits than its factorization.

40230070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9159.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 40230070 is about 6342.7178717014. The cubic root of 40230070 is about 342.6496264916.

Adding to 40230070 its reverse (7003204), we get a palindrome (47233274).

The spelling of 40230070 in words is "forty million, two hundred thirty thousand, seventy".

Divisors: 1 2 5 10 463 926 2315 4630 8689 17378 43445 86890 4023007 8046014 20115035 40230070