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1310870240 = 2558192939
BaseRepresentation
bin100111000100010…
…0100101011100000
310101100122002220122
41032020210223200
510141040321430
6334024255412
744325133061
oct11610445340
93340562818
101310870240
11612a52239
12307011568
1317b772984
14c6150568
157a13aee5
hex4e224ae0

1310870240 has 24 divisors (see below), whose sum is σ = 3096931320. Its totient is φ = 524348032.

The previous prime is 1310870227. The next prime is 1310870261. The reversal of 1310870240 is 420780131.

It is a super-2 number, since 2×13108702402 = 3436761572235315200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4096310 + ... + 4096629.

It is an arithmetic number, because the mean of its divisors is an integer number (129038805).

Almost surely, 21310870240 is an apocalyptic number.

1310870240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310870240 is an abundant number, since it is smaller than the sum of its proper divisors (1786061080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310870240 is an equidigital number, since it uses as much as digits as its factorization.

1310870240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192954 (or 8192946 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1310870240 is about 36205.9420537569. The cubic root of 1310870240 is about 1094.4264185311.

The spelling of 1310870240 in words is "one billion, three hundred ten million, eight hundred seventy thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 8192939 16385878 32771756 40964695 65543512 81929390 131087024 163858780 262174048 327717560 655435120 1310870240