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20314140240 = 243584642251
BaseRepresentation
bin10010111010110100…
…010010111001010000
31221102201122020122110
4102322310102321100
5313100404441430
613155430305320
71316255225442
oct227264227120
957381566573
1020314140240
118684891259
123b2b1b8240
131bb97b6934
14da9cda492
157dd61e7b0
hex4bad12e50

20314140240 has 40 divisors (see below), whose sum is σ = 62973835488. Its totient is φ = 5417104000.

The previous prime is 20314140233. The next prime is 20314140311. The reversal of 20314140240 is 4204141302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42320886 + ... + 42321365.

Almost surely, 220314140240 is an apocalyptic number.

20314140240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20314140240 is an abundant number, since it is smaller than the sum of its proper divisors (42659695248).

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

20314140240 is a wasteful number, since it uses less digits than its factorization.

20314140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84642267 (or 84642261 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20314140240 its reverse (4204141302), we get a palindrome (24518281542).

The spelling of 20314140240 in words is "twenty billion, three hundred fourteen million, one hundred forty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 84642251 169284502 253926753 338569004 423211255 507853506 677138008 846422510 1015707012 1269633765 1354276016 1692845020 2031414024 2539267530 3385690040 4062828048 5078535060 6771380080 10157070120 20314140240