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2121181283030 = 251755711223969
BaseRepresentation
bin11110110111100000010…
…000011100001011010110
321111210010202210212010212
4132313200100130023112
5234223134402024110
64302242432245422
7306151564262225
oct36674020341326
97453122725125
102121181283030
11748651598377
122a31233a0872
131250463bb784
1474946a52cbc
153a29ba22e05
hex1ede041c2d6

2121181283030 has 32 divisors (see below), whose sum is σ = 4042812591360. Its totient is φ = 798544465920.

The previous prime is 2121181283009. The next prime is 2121181283057. The reversal of 2121181283030 is 303821811212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9358886 + ... + 9582854.

It is an arithmetic number, because the mean of its divisors is an integer number (126337893480).

Almost surely, 22121181283030 is an apocalyptic number.

2121181283030 is a deficient number, since it is larger than the sum of its proper divisors (1921631308330).

2121181283030 is a wasteful number, since it uses less digits than its factorization.

2121181283030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279704.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 2121181283030 in words is "two trillion, one hundred twenty-one billion, one hundred eighty-one million, two hundred eighty-three thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 55711 111422 223969 278555 447938 557110 947087 1119845 1894174 2239690 3807473 4735435 7614946 9470870 19037365 38074730 12477536959 24955073918 62387684795 124775369590 212118128303 424236256606 1060590641515 2121181283030