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42213958 = 2171241587
BaseRepresentation
bin1010000100001…
…0001001000110
32221102200122221
42201002021012
541301321313
64104442554
71021545523
oct241021106
987380587
1042213958
1121912a76
121217945a
138990497
14586c14a
153a8cc8d
hex2842246

42213958 has 8 divisors (see below), whose sum is σ = 67045752. Its totient is φ = 19865376.

The previous prime is 42213931. The next prime is 42213959. The reversal of 42213958 is 85931224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1241587 = 42213958 / (4 + 2 + 2 + 1 + 3 + 9 + 5 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42213959) 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, 620760 + ... + 620827.

It is an arithmetic number, because the mean of its divisors is an integer number (8380719).

Almost surely, 242213958 is an apocalyptic number.

42213958 is a deficient number, since it is larger than the sum of its proper divisors (24831794).

42213958 is a wasteful number, since it uses less digits than its factorization.

42213958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241606.

The product of its digits is 17280, while the sum is 34.

The square root of 42213958 is about 6497.2269469367. The cubic root of 42213958 is about 348.1919219244.

The spelling of 42213958 in words is "forty-two million, two hundred thirteen thousand, nine hundred fifty-eight".

Divisors: 1 2 17 34 1241587 2483174 21106979 42213958