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231133213300 = 225211210121103
BaseRepresentation
bin1101011101000010011…
…1001111001001110100
3211002121001220210021111
43113100213033021310
512241330100311200
6254103042524404
722461460616503
oct3272047171164
9732531823244
10231133213300
118a028745150
1238966066704
1318a463c3692
14b288c3283a
15602b7e50ba
hex35d09cf274

231133213300 has 36 divisors (see below), whose sum is σ = 547155354816. Its totient is φ = 84048440800.

The previous prime is 231133213291. The next prime is 231133213303. The reversal of 231133213300 is 3312331132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231133213303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105059452 + ... + 105061651.

It is an arithmetic number, because the mean of its divisors is an integer number (15198759856).

Almost surely, 2231133213300 is an apocalyptic number.

231133213300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231133213300 is an abundant number, since it is smaller than the sum of its proper divisors (316022141516).

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

231133213300 is a wasteful number, since it uses less digits than its factorization.

231133213300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210121128 (or 210121121 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231133213300 its reverse (3312331132), we get a palindrome (234445544432).

The spelling of 231133213300 in words is "two hundred thirty-one billion, one hundred thirty-three million, two hundred thirteen thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 210121103 420242206 840484412 1050605515 2101211030 2311332133 4202422060 4622664266 5253027575 9245328532 10506055150 11556660665 21012110300 23113321330 46226642660 57783303325 115566606650 231133213300