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210020011219 = 171947100913711
BaseRepresentation
bin1100001110011000101…
…0110000110011010011
3202002002122200222212001
43003212022300303103
511420110110324334
6240252025414431
721113330432464
oct3034612606323
9662078628761
10210020011219
1181083903a07
123485333a417
1316a601c4bb5
14a244b72d6b
1556e2e86714
hex30e62b0cd3

210020011219 has 32 divisors (see below), whose sum is σ = 239312793600. Its totient is φ = 183083120640.

The previous prime is 210020011193. The next prime is 210020011231. The reversal of 210020011219 is 912110020012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210020011219 - 231 = 207872527571 is a prime.

It is a super-2 number, since 2×2100200112192 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210020011196 and 210020011205.

It is not an unprimeable number, because it can be changed into a prime (210020011249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15310774 + ... + 15324484.

It is an arithmetic number, because the mean of its divisors is an integer number (7478524800).

Almost surely, 2210020011219 is an apocalyptic number.

210020011219 is a deficient number, since it is larger than the sum of its proper divisors (29292782381).

210020011219 is a wasteful number, since it uses less digits than its factorization.

210020011219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14803.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 210020011219 in words is "two hundred ten billion, twenty million, eleven thousand, two hundred nineteen".

Divisors: 1 17 19 47 323 799 893 1009 13711 15181 17153 19171 47423 233087 260509 325907 644417 806191 901037 4428653 10955089 12243923 13834399 15317629 208146691 235184783 262853581 650216753 4468510877 11053684801 12354118307 210020011219