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42021214162 = 221010607081
BaseRepresentation
bin100111001000101010…
…001101011111010010
311000110112022212002021
4213020222031133102
51142024412323122
631145420242054
73015216266314
oct471052153722
9130415285067
1042021214162
1116903975174
1281889a032a
133c68a46885
142068bc97b4
15115e18a1c7
hex9c8a8d7d2

42021214162 has 4 divisors (see below), whose sum is σ = 63031821246. Its totient is φ = 21010607080.

The previous prime is 42021214129. The next prime is 42021214163. The reversal of 42021214162 is 26141212024.

42021214162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33390618361 + 8630595801 = 182731^2 + 92901^2 .

It is not an unprimeable number, because it can be changed into a prime (42021214163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505303539 + ... + 10505303542.

Almost surely, 242021214162 is an apocalyptic number.

42021214162 is a deficient number, since it is larger than the sum of its proper divisors (21010607084).

42021214162 is a wasteful number, since it uses less digits than its factorization.

42021214162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21010607083.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 42021214162 its reverse (26141212024), we get a palindrome (68162426186).

The spelling of 42021214162 in words is "forty-two billion, twenty-one million, two hundred fourteen thousand, one hundred sixty-two".

Divisors: 1 2 21010607081 42021214162