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2131232232 = 233259134273
BaseRepresentation
bin111111100001000…
…0000010111101000
312111112021211000010
41333002000113220
513331043412412
6551251411520
7103546114023
oct17702002750
95445254003
102131232232
119a4030358
124b58b3ba0
1327c70497c
1416309a1ba
15c718633c
hex7f0805e8

2131232232 has 32 divisors (see below), whose sum is σ = 5330292480. Its totient is φ = 710115840.

The previous prime is 2131232231. The next prime is 2131232267. The reversal of 2131232232 is 2322321312.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2131232199 and 2131232208.

It is not an unprimeable number, because it can be changed into a prime (2131232231) 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, 45048 + ... + 79320.

It is an arithmetic number, because the mean of its divisors is an integer number (166571640).

Almost surely, 22131232232 is an apocalyptic number.

It is an amenable number.

2131232232 is an abundant number, since it is smaller than the sum of its proper divisors (3199060248).

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

2131232232 is a wasteful number, since it uses less digits than its factorization.

2131232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36873 (or 36869 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 2131232232 is about 46165.2708429183. The cubic root of 2131232232 is about 1286.8964175203.

Adding to 2131232232 its reverse (2322321312), we get a palindrome (4453553544).

The spelling of 2131232232 in words is "two billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 2591 5182 7773 10364 15546 20728 31092 34273 62184 68546 102819 137092 205638 274184 411276 822552 88801343 177602686 266404029 355205372 532808058 710410744 1065616116 2131232232