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2100234340 = 225389269953
BaseRepresentation
bin111110100101111…
…0000100001100100
312102100221221220001
41331023300201210
513300124444330
6544223151044
7103021461121
oct17513604144
95370857801
102100234340
11988589166
124a7445484
13276170719
1415cd0b748
15c45b19ca
hex7d2f0864

2100234340 has 24 divisors (see below), whose sum is σ = 4421846520. Its totient is φ = 837931008.

The previous prime is 2100234319. The next prime is 2100234343. The reversal of 2100234340 is 434320012.

It can be written as a sum of positive squares in 4 ways, for example, as 126742564 + 1973491776 = 11258^2 + 44424^2 .

It is not an unprimeable number, because it can be changed into a prime (2100234343) 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, 127197 + ... + 142756.

It is an arithmetic number, because the mean of its divisors is an integer number (184243605).

Almost surely, 22100234340 is an apocalyptic number.

2100234340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100234340 is an abundant number, since it is smaller than the sum of its proper divisors (2321612180).

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

2100234340 is a wasteful number, since it uses less digits than its factorization.

2100234340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270351 (or 270349 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2100234340 is about 45828.3137372520. The cubic root of 2100234340 is about 1280.6267966954.

Adding to 2100234340 its reverse (434320012), we get a palindrome (2534554352).

The spelling of 2100234340 in words is "two billion, one hundred million, two hundred thirty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 269953 539906 1079812 1349765 2699530 5399060 105011717 210023434 420046868 525058585 1050117170 2100234340