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1027438996 = 221715109397
BaseRepresentation
bin111101001111010…
…111100110010100
32122121022022100011
4331033113212110
54101011021441
6245541330004
734314041653
oct7517274624
92577268304
101027438996
11487a65141
12248106904
13134b2658c
149a65119a
1560301581
hex3d3d7994

1027438996 has 12 divisors (see below), whose sum is σ = 1903784148. Its totient is φ = 483500672.

The previous prime is 1027438991. The next prime is 1027439009. The reversal of 1027438996 is 6998347201.

It can be written as a sum of positive squares in 2 ways, for example, as 468116496 + 559322500 = 21636^2 + 23650^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027438991) 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, 7554631 + ... + 7554766.

It is an arithmetic number, because the mean of its divisors is an integer number (158648679).

Almost surely, 21027438996 is an apocalyptic number.

It is an amenable number.

1027438996 is a deficient number, since it is larger than the sum of its proper divisors (876345152).

1027438996 is a wasteful number, since it uses less digits than its factorization.

1027438996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15109418 (or 15109416 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1027438996 is about 32053.6892728435. The cubic root of 1027438996 is about 1009.0639289764.

The spelling of 1027438996 in words is "one billion, twenty-seven million, four hundred thirty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 17 34 68 15109397 30218794 60437588 256859749 513719498 1027438996