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2231643596 = 2271340115289
BaseRepresentation
bin1000010100000100…
…0010110111001100
312202112020020111112
42011001002313030
514032300043341
61005235511152
7106205441360
oct20501026714
95675206445
102231643596
11a45782956
125234584b8
13297460790
141725572a0
15d0dbcaeb
hex85042dcc

2231643596 has 48 divisors (see below), whose sum is σ = 4818918720. Its totient is φ = 880588800.

The previous prime is 2231643559. The next prime is 2231643643. The reversal of 2231643596 is 6953461322.

It is a super-3 number, since 3×22316435963 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138320 + ... + 153608.

It is an arithmetic number, because the mean of its divisors is an integer number (100394140).

Almost surely, 22231643596 is an apocalyptic number.

2231643596 is a gapful number since it is divisible by the number (26) 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 2231643596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2409459360).

2231643596 is an abundant number, since it is smaller than the sum of its proper divisors (2587275124).

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

2231643596 is a wasteful number, since it uses less digits than its factorization.

2231643596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15714 (or 15712 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 2231643596 is about 47240.2751473782. The cubic root of 2231643596 is about 1306.7974518833.

The spelling of 2231643596 in words is "two billion, two hundred thirty-one million, six hundred forty-three thousand, five hundred ninety-six".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 401 802 1604 2807 5213 5614 10426 11228 15289 20852 30578 36491 61156 72982 107023 145964 198757 214046 397514 428092 795028 1391299 2782598 5565196 6130889 12261778 24523556 42916223 79701557 85832446 159403114 171664892 318806228 557910899 1115821798 2231643596