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2013323240 = 235367113711
BaseRepresentation
bin111100000000000…
…1101111111101000
312012022102102021102
41320000031333220
513110402320430
6531440300532
7100614652025
oct17000157750
95168372242
102013323240
11943517605
12482311748
13261160736
1415156654c
15bbb45345
hex7800dfe8

2013323240 has 32 divisors (see below), whose sum is σ = 4531541760. Its totient is φ = 805051200.

The previous prime is 2013323233. The next prime is 2013323251. The reversal of 2013323240 is 423233102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 139985 + ... + 153695.

It is an arithmetic number, because the mean of its divisors is an integer number (141610680).

Almost surely, 22013323240 is an apocalyptic number.

2013323240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013323240 is an abundant number, since it is smaller than the sum of its proper divisors (2518218520).

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

2013323240 is a wasteful number, since it uses less digits than its factorization.

2013323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17393 (or 17389 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2013323240 is about 44870.0706484846. The cubic root of 2013323240 is about 1262.7125654569.

Adding to 2013323240 its reverse (423233102), we get a palindrome (2436556342).

The spelling of 2013323240 in words is "two billion, thirteen million, three hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3671 7342 13711 14684 18355 27422 29368 36710 54844 68555 73420 109688 137110 146840 274220 548440 50333081 100666162 201332324 251665405 402664648 503330810 1006661620 2013323240