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2013331144 = 231132217103
BaseRepresentation
bin111100000000000…
…1111111011001000
312012022102211010011
41320000033323020
513110403044034
6531440401304
7100615014046
oct17000177310
95168384104
102013331144
11943522540
12482316234
13261164206
14151569396
15bbb47864
hex7800fec8

2013331144 has 32 divisors (see below), whose sum is σ = 4120035840. Its totient is φ = 914737600.

The previous prime is 2013331141. The next prime is 2013331147. The reversal of 2013331144 is 4411333102.

It is an interprime number because it is at equal distance from previous prime (2013331141) and next prime (2013331147).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2013331141) 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, 279897 + ... + 286999.

It is an arithmetic number, because the mean of its divisors is an integer number (128751120).

Almost surely, 22013331144 is an apocalyptic number.

It is an amenable number.

2013331144 is an abundant number, since it is smaller than the sum of its proper divisors (2106704696).

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

2013331144 is a wasteful number, since it uses less digits than its factorization.

2013331144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341 (or 10337 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2013331144 is about 44870.1587249254. The cubic root of 2013331144 is about 1262.7142178604.

Adding to 2013331144 its reverse (4411333102), we get a palindrome (6424664246).

The spelling of 2013331144 in words is "two billion, thirteen million, three hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 3221 6442 7103 12884 14206 25768 28412 35431 56824 70862 78133 141724 156266 283448 312532 625064 22878763 45757526 91515052 183030104 251666393 503332786 1006665572 2013331144