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1220313120207 = 39717954742829
BaseRepresentation
bin10001110000100000010…
…101000111110111001111
311022122211201102112101220
4101300200111013313033
5124443200124321312
62332334253134423
7154110332242566
oct21604025076717
94278751375356
101220313120207
11430593a40a45
1217860848a413
138b0c8b0526c
14430c623abdd
1521b231a7c8c
hex11c20547dcf

1220313120207 has 32 divisors (see below), whose sum is σ = 1656102470400. Its totient is φ = 799174591488.

The previous prime is 1220313120193. The next prime is 1220313120211. The reversal of 1220313120207 is 7020213130221.

It is a happy number.

It is not a de Polignac number, because 1220313120207 - 215 = 1220313087439 is a prime.

It is a super-2 number, since 2×12203131202072 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220313120007) 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, 28471269 + ... + 28514097.

It is an arithmetic number, because the mean of its divisors is an integer number (51753202200).

Almost surely, 21220313120207 is an apocalyptic number.

1220313120207 is a deficient number, since it is larger than the sum of its proper divisors (435789350193).

1220313120207 is a wasteful number, since it uses less digits than its factorization.

1220313120207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43655.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 1220313120207 its reverse (7020213130221), we get a palindrome (8240526250428).

The spelling of 1220313120207 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, one hundred twenty thousand, two hundred seven".

Divisors: 1 3 97 179 291 537 547 1641 17363 42829 52089 53059 97913 128487 159177 293739 4154413 7666391 9497561 12463239 22999173 23427463 28492683 70282389 743639927 2230919781 2272463911 4193515877 6817391733 12580547631 406771040069 1220313120207