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40030230 = 2351334341
BaseRepresentation
bin1001100010110…
…1000000010110
32210022202011010
42120231000112
540221431410
63545553050
7664152132
oct230550026
983282133
1040030230
1120661339
12114a5786
1383a7536
1454603c2
1537aac20
hex262d016

40030230 has 16 divisors (see below), whose sum is σ = 96072624. Its totient is φ = 10674720.

The previous prime is 40030219. The next prime is 40030231. The reversal of 40030230 is 3203004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030231) 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, 667141 + ... + 667200.

It is an arithmetic number, because the mean of its divisors is an integer number (6004539).

Almost surely, 240030230 is an apocalyptic number.

40030230 is an abundant number, since it is smaller than the sum of its proper divisors (56042394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40030230 is a wasteful number, since it uses less digits than its factorization.

40030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334351.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 40030230 is about 6326.9447603089. The cubic root of 40030230 is about 342.0813219289.

Adding to 40030230 its reverse (3203004), we get a palindrome (43233234).

The spelling of 40030230 in words is "forty million, thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1334341 2668682 4003023 6671705 8006046 13343410 20015115 40030230