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2121300031300 = 225285643247691
BaseRepresentation
bin11110110111100111010…
…101011011011101000100
321111210110001020220010221
4132313213111123131010
5234223410302000200
64302302313354124
7306154535521132
oct36674725333504
97453401226127
102121300031300
1174870262473a
122a3157108944
13125064b97a18
1474958724752
153a2a717c91a
hex1ede755b744

2121300031300 has 36 divisors (see below), whose sum is σ = 4603293401616. Its totient is φ = 848506679200.

The previous prime is 2121300031271. The next prime is 2121300031327. The reversal of 2121300031300 is 31300031212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8440455 + ... + 8688145.

It is an arithmetic number, because the mean of its divisors is an integer number (127869261156).

Almost surely, 22121300031300 is an apocalyptic number.

2121300031300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121300031300 is an abundant number, since it is smaller than the sum of its proper divisors (2481993370316).

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

2121300031300 is a wasteful number, since it uses less digits than its factorization.

2121300031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333348 (or 333341 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 2121300031300 its reverse (31300031212), we get a palindrome (2152600062512).

The spelling of 2121300031300 in words is "two trillion, one hundred twenty-one billion, three hundred million, thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 85643 171286 247691 342572 428215 495382 856430 990764 1238455 1712860 2141075 2476910 4282150 4953820 6192275 8564300 12384550 24769100 21213000313 42426000626 84852001252 106065001565 212130003130 424260006260 530325007825 1060650015650 2121300031300