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42021000413 = 7212714945319
BaseRepresentation
bin100111001000101001…
…011001010011011101
311000110111220222212122
4213020221121103131
51142024334003123
631145411512325
73015214416200
oct471051312335
9130414828778
1042021000413
1116903839617
1281888b86a5
133c689a04b2
142068b71937
15115e146bc8
hex9c8a594dd

42021000413 has 24 divisors (see below), whose sum is σ = 49598208000. Its totient is φ = 35493782688.

The previous prime is 42021000349. The next prime is 42021000431. The reversal of 42021000413 is 31400012024.

42021000413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42021000413 - 26 = 42021000349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42021000391 and 42021000400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021000013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904568 + ... + 949886.

It is an arithmetic number, because the mean of its divisors is an integer number (2066592000).

Almost surely, 242021000413 is an apocalyptic number.

It is an amenable number.

42021000413 is a deficient number, since it is larger than the sum of its proper divisors (7577207587).

42021000413 is a wasteful number, since it uses less digits than its factorization.

42021000413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45609 (or 45602 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42021000413 its reverse (31400012024), we get a palindrome (73421012437).

The spelling of 42021000413 in words is "forty-two billion, twenty-one million, four hundred thirteen", and thus it is an aban number.

Divisors: 1 7 49 127 149 889 1043 6223 7301 18923 45319 132461 317233 927227 2220631 5755513 6752531 40288591 47267717 282020137 330874019 857571437 6003000059 42021000413