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2111120030 = 25353598051
BaseRepresentation
bin111110111010101…
…0010001010011110
312110010110000020202
41331311102022132
513310421320110
6545252343502
7103213136615
oct17565221236
95403400222
102111120030
119937437a8
124ab014b92
132784b2466
1416054287c
15c55120a5
hex7dd5229e

2111120030 has 16 divisors (see below), whose sum is σ = 3810787344. Its totient is φ = 842054400.

The previous prime is 2111120029. The next prime is 2111120051. The reversal of 2111120030 is 300211112.

It is a junction number, because it is equal to n+sod(n) for n = 2111119993 and 2111120020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295496 + ... + 302555.

It is an arithmetic number, because the mean of its divisors is an integer number (238174209).

Almost surely, 22111120030 is an apocalyptic number.

2111120030 is a deficient number, since it is larger than the sum of its proper divisors (1699667314).

2111120030 is a wasteful number, since it uses less digits than its factorization.

2111120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598411.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111120030 is about 45946.9262301626. The cubic root of 2111120030 is about 1282.8355169680.

Adding to 2111120030 its reverse (300211112), we get a palindrome (2411331142).

The spelling of 2111120030 in words is "two billion, one hundred eleven million, one hundred twenty thousand, thirty".

Divisors: 1 2 5 10 353 706 1765 3530 598051 1196102 2990255 5980510 211112003 422224006 1055560015 2111120030