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2331213040 = 245132172427
BaseRepresentation
bin1000101011110011…
…0111110011110000
320000110120220002201
42022330313303300
514233242304130
61023153552544
7111524661322
oct21274676360
96013526081
102331213040
11a969aa952
12550875754
132b1c83300
14181875612
15d99d9bca
hex8af37cf0

2331213040 has 60 divisors (see below), whose sum is σ = 5869104264. Its totient is φ = 860750592.

The previous prime is 2331213029. The next prime is 2331213061. The reversal of 2331213040 is 403121332.

It is a junction number, because it is equal to n+sod(n) for n = 2331212999 and 2331213017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72694 + ... + 99733.

Almost surely, 22331213040 is an apocalyptic number.

2331213040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331213040 is an abundant number, since it is smaller than the sum of its proper divisors (3537891224).

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

2331213040 is a wasteful number, since it uses less digits than its factorization.

2331213040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172466 (or 172447 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2331213040 is about 48282.6370448011. The cubic root of 2331213040 is about 1325.9505300011.

Adding to 2331213040 its reverse (403121332), we get a palindrome (2734334372).

The spelling of 2331213040 in words is "two billion, three hundred thirty-one million, two hundred thirteen thousand, forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 169 208 260 338 520 676 845 1040 1352 1690 2704 3380 6760 13520 172427 344854 689708 862135 1379416 1724270 2241551 2758832 3448540 4483102 6897080 8966204 11207755 13794160 17932408 22415510 29140163 35864816 44831020 58280326 89662040 116560652 145700815 179324080 233121304 291401630 466242608 582803260 1165606520 2331213040