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2311200342 = 2321126344383
BaseRepresentation
bin1000100111000010…
…0001111001010110
312222001221010211200
42021300201321112
514213131402332
61021201013330
7111162610263
oct21160417126
95861833750
102311200342
11a86681030
12546024246
132aaa97189
1417cd4626a
15d7d8517c
hex89c21e56

2311200342 has 48 divisors (see below), whose sum is σ = 5483731968. Its totient is φ = 697685040.

The previous prime is 2311200329. The next prime is 2311200347. The reversal of 2311200342 is 2430021132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311200347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29883 + ... + 74265.

It is an arithmetic number, because the mean of its divisors is an integer number (114244416).

Almost surely, 22311200342 is an apocalyptic number.

2311200342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311200342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2741865984).

2311200342 is an abundant number, since it is smaller than the sum of its proper divisors (3172531626).

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

2311200342 is a wasteful number, since it uses less digits than its factorization.

2311200342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44665 (or 44662 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2311200342 is about 48074.9450545708. The cubic root of 2311200342 is about 1322.1453371478.

Adding to 2311200342 its reverse (2430021132), we get a palindrome (4741221474).

The spelling of 2311200342 in words is "two billion, three hundred eleven million, two hundred thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 263 526 789 1578 2367 2893 4734 5786 8679 17358 26037 44383 52074 88766 133149 266298 399447 488213 798894 976426 1464639 2929278 4393917 8787834 11672729 23345458 35018187 70036374 105054561 128400019 210109122 256800038 385200057 770400114 1155600171 2311200342