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2013132040 = 235234315077
BaseRepresentation
bin111011111111101…
…1111010100001000
312012022001200222221
41313333133110020
513110330211130
6531432223424
7100613224423
oct16777372410
95168050887
102013132040
119433a6997
1248223ab74
132610c46ba
141515169ba
15bbb0887a
hex77fdf508

2013132040 has 64 divisors (see below), whose sum is σ = 4738383360. Its totient is φ = 768303360.

The previous prime is 2013131999. The next prime is 2013132047. The reversal of 2013132040 is 402313102.

It is a happy number.

It is a super-2 number, since 2×20131320402 = 8105401220949123200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2013132047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393982 + ... + 399058.

It is an arithmetic number, because the mean of its divisors is an integer number (74037240).

Almost surely, 22013132040 is an apocalyptic number.

2013132040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2369191680).

2013132040 is an abundant number, since it is smaller than the sum of its proper divisors (2725251320).

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

2013132040 is a wasteful number, since it uses less digits than its factorization.

2013132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2013132040 is about 44867.9400017429. The cubic root of 2013132040 is about 1262.6725920304.

Adding to 2013132040 its reverse (402313102), we get a palindrome (2415445142).

The spelling of 2013132040 in words is "two billion, thirteen million, one hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 431 460 862 920 1724 2155 3448 4310 5077 8620 9913 10154 17240 19826 20308 25385 39652 40616 49565 50770 79304 99130 101540 116771 198260 203080 233542 396520 467084 583855 934168 1167710 2188187 2335420 4376374 4670840 8752748 10940935 17505496 21881870 43763740 50328301 87527480 100656602 201313204 251641505 402626408 503283010 1006566020 2013132040