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1213202030204 = 22518017585503
BaseRepresentation
bin10001101001111000011…
…110011101111001111100
311021222111010122201210002
4101221320132131321330
5124334114204431304
62325200505533432
7153436164052013
oct21517036357174
94258433581702
101213202030204
11428574a1085a
12177162aa4278
138a5347a4ab8
1442a0da43a7a
1521858c4831e
hex11a7879de7c

1213202030204 has 12 divisors (see below), whose sum is σ = 2123111277504. Its totient is φ = 606598808064.

The previous prime is 1213202030197. The next prime is 1213202030213. The reversal of 1213202030204 is 4020302023121.

It is a super-2 number, since 2×12132020302042 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779317 + ... + 2364819.

It is an arithmetic number, because the mean of its divisors is an integer number (176925939792).

Almost surely, 21213202030204 is an apocalyptic number.

It is an amenable number.

1213202030204 is a deficient number, since it is larger than the sum of its proper divisors (909909247300).

1213202030204 is a wasteful number, since it uses less digits than its factorization.

1213202030204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103524 (or 1103522 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1213202030204 its reverse (4020302023121), we get a palindrome (5233504053325).

The spelling of 1213202030204 in words is "one trillion, two hundred thirteen billion, two hundred two million, thirty thousand, two hundred four".

Divisors: 1 2 4 518017 585503 1036034 1171006 2072068 2342012 303300507551 606601015102 1213202030204