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42213020 = 2253795569
BaseRepresentation
bin1010000100000…
…1111010011100
32221102122101012
42201001322130
541301304040
64104434352
71021543013
oct241017234
987378335
1042213020
11219122a3
12121789b8
13898cc25
14586ba7a
153a8c865
hex2841e9c

42213020 has 24 divisors (see below), whose sum is σ = 88897200. Its totient is φ = 16837632.

The previous prime is 42213013. The next prime is 42213029. The reversal of 42213020 is 2031224.

It is a junction number, because it is equal to n+sod(n) for n = 42212986 and 42213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42213029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4796 + ... + 10364.

It is an arithmetic number, because the mean of its divisors is an integer number (3704050).

Almost surely, 242213020 is an apocalyptic number.

It is an amenable number.

42213020 is an abundant number, since it is smaller than the sum of its proper divisors (46684180).

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

42213020 is a wasteful number, since it uses less digits than its factorization.

42213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957 (or 5955 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42213020 is about 6497.1547618939. The cubic root of 42213020 is about 348.1893429477.

Adding to 42213020 its reverse (2031224), we get a palindrome (44244244).

The spelling of 42213020 in words is "forty-two million, two hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 5569 7580 11138 22276 27845 55690 111380 2110651 4221302 8442604 10553255 21106510 42213020