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211052030 = 2573197259
BaseRepresentation
bin11001001010001…
…10010111111110
3112201010112221212
430211012113332
5413012131110
632535324422
75141625020
oct1445062776
9481115855
10211052030
11a9151572
125a820712
1334956977
142005c010
15137dde05
hexc9465fe

211052030 has 32 divisors (see below), whose sum is σ = 448174080. Its totient is φ = 70025760.

The previous prime is 211051987. The next prime is 211052063. The reversal of 211052030 is 30250112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 211051996 and 211052014.

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, 46460 + ... + 50799.

It is an arithmetic number, because the mean of its divisors is an integer number (14005440).

Almost surely, 2211052030 is an apocalyptic number.

211052030 is an abundant number, since it is smaller than the sum of its proper divisors (237122050).

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

211052030 is a wasteful number, since it uses less digits than its factorization.

211052030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97304.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 211052030 is about 14527.6298824000. The cubic root of 211052030 is about 595.3831113167.

The spelling of 211052030 in words is "two hundred eleven million, fifty-two thousand, thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 97259 194518 486295 680813 972590 1361626 3015029 3404065 6030058 6808130 15075145 21105203 30150290 42210406 105526015 211052030