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211020220002 = 23231529132029
BaseRepresentation
bin1100010010000111001…
…0010000011001100010
3202011200100202212100210
43010201302100121202
511424132134020002
6240535155354550
721150164163204
oct3044162203142
9664610685323
10211020220002
118154745a639
1234a922b2a56
1316b8c4a6107
14a2db936774
155750ba996c
hex3121c90662

211020220002 has 16 divisors (see below), whose sum is σ = 440390024640. Its totient is φ = 67281809232.

The previous prime is 211020219983. The next prime is 211020220109. The reversal of 211020220002 is 200022020112.

It is a self number, because there is not a number n which added to its sum of digits gives 211020220002.

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, 764565877 + ... + 764566152.

It is an arithmetic number, because the mean of its divisors is an integer number (27524376540).

Almost surely, 2211020220002 is an apocalyptic number.

211020220002 is an abundant number, since it is smaller than the sum of its proper divisors (229369804638).

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

211020220002 is a wasteful number, since it uses less digits than its factorization.

211020220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529132057.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 211020220002 its reverse (200022020112), we get a palindrome (411042240114).

The spelling of 211020220002 in words is "two hundred eleven billion, twenty million, two hundred twenty thousand, two".

Divisors: 1 2 3 6 23 46 69 138 1529132029 3058264058 4587396087 9174792174 35170036667 70340073334 105510110001 211020220002