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40021102 = 21129149421
BaseRepresentation
bin1001100010101…
…0110001101110
32210022021122001
42120222301232
540221133402
63545442514
7664113412
oct230526156
983267561
1040021102
11206554a0
12114a043a
1383a3334
14545ad42
1537a8187
hex262ac6e

40021102 has 32 divisors (see below), whose sum is σ = 68364000. Its totient is φ = 17404800.

The previous prime is 40021061. The next prime is 40021117. The reversal of 40021102 is 20112004.

40021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94852 + ... + 95272.

It is an arithmetic number, because the mean of its divisors is an integer number (2136375).

Almost surely, 240021102 is an apocalyptic number.

40021102 is a deficient number, since it is larger than the sum of its proper divisors (28342898).

40021102 is a wasteful number, since it uses less digits than its factorization.

40021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40021102 is about 6326.2233599518. The cubic root of 40021102 is about 342.0553186169.

Adding to 40021102 its reverse (20112004), we get a palindrome (60133106).

The spelling of 40021102 in words is "forty million, twenty-one thousand, one hundred two".

Divisors: 1 2 11 22 29 58 149 298 319 421 638 842 1639 3278 4321 4631 8642 9262 12209 24418 47531 62729 95062 125458 134299 268598 690019 1380038 1819141 3638282 20010551 40021102