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6255906397 = 131823326393
BaseRepresentation
bin1011101001110000…
…11000111001011101
3121010222120222020221
411310320120321131
5100303003001042
62512433441341
7311012220106
oct56470307135
917128528227
106255906397
112720329084
121267110251
137890c8980
14434bc53ad
15269336d67
hex174e18e5d

6255906397 has 8 divisors (see below), whose sum is σ = 6737754744. Its totient is φ = 5774147328.

The previous prime is 6255906359. The next prime is 6255906407. The reversal of 6255906397 is 7936095526.

It can be written as a sum of positive squares in 4 ways, for example, as 335219481 + 5920686916 = 18309^2 + 76946^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6255906397 - 27 = 6255906269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255907397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223833 + ... + 250225.

It is an arithmetic number, because the mean of its divisors is an integer number (842219343).

Almost surely, 26255906397 is an apocalyptic number.

It is an amenable number.

6255906397 is a deficient number, since it is larger than the sum of its proper divisors (481848347).

6255906397 is a wasteful number, since it uses less digits than its factorization.

6255906397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44639.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The square root of 6255906397 is about 79094.2880175301. The cubic root of 6255906397 is about 1842.5958160354.

The spelling of 6255906397 in words is "six billion, two hundred fifty-five million, nine hundred six thousand, three hundred ninety-seven".

Divisors: 1 13 18233 26393 237029 343109 481223569 6255906397