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213024431300 = 225217125308489
BaseRepresentation
bin1100011001100100111…
…1101101110011000100
3202100212001001100101212
43012121033231303010
511442233223300200
6241510112510552
721250641534632
oct3063117556304
9670761040355
10213024431300
118238581320a
123535154b458
131711b796265
14a44bbaa352
15581bb00035
hex31993edcc4

213024431300 has 36 divisors (see below), whose sum is σ = 489454961940. Its totient is φ = 80197432320.

The previous prime is 213024431281. The next prime is 213024431309. The reversal of 213024431300 is 3134420312.

It can be written as a sum of positive squares in 6 ways, for example, as 7545354496 + 205479076804 = 86864^2 + 453298^2 .

It is not an unprimeable number, because it can be changed into a prime (213024431309) 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, 62652545 + ... + 62655944.

It is an arithmetic number, because the mean of its divisors is an integer number (13595971165).

Almost surely, 2213024431300 is an apocalyptic number.

213024431300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213024431300 is an abundant number, since it is smaller than the sum of its proper divisors (276430530640).

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

213024431300 is a wasteful number, since it uses less digits than its factorization.

213024431300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125308520 (or 125308513 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213024431300 its reverse (3134420312), we get a palindrome (216158851612).

The spelling of 213024431300 in words is "two hundred thirteen billion, twenty-four million, four hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 340 425 850 1700 125308489 250616978 501233956 626542445 1253084890 2130244313 2506169780 3132712225 4260488626 6265424450 8520977252 10651221565 12530848900 21302443130 42604886260 53256107825 106512215650 213024431300