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20402020301 = 13101103257587
BaseRepresentation
bin10011000000000011…
…100001111111001101
31221122212000000102112
4103000003201333031
5313240404122201
613212250033405
71321403211515
oct230003417715
957585000375
1020402020301
11871a454903
123b54718865
131c01a75980
14db7854845
157e61cd0bb
hex4c00e1fcd

20402020301 has 32 divisors (see below), whose sum is σ = 22529864448. Its totient is φ = 18361958400.

The previous prime is 20402020271. The next prime is 20402020337. The reversal of 20402020301 is 10302020402.

It is a cyclic number.

It is not a de Polignac number, because 20402020301 - 230 = 19328278477 is a prime.

It is a super-2 number, since 2×204020203012 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402020361) 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, 34756130 + ... + 34756716.

It is an arithmetic number, because the mean of its divisors is an integer number (704058264).

Almost surely, 220402020301 is an apocalyptic number.

It is an amenable number.

20402020301 is a deficient number, since it is larger than the sum of its proper divisors (2127844147).

20402020301 is a wasteful number, since it uses less digits than its factorization.

20402020301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20402020301 its reverse (10302020402), we get a palindrome (30704040703).

The spelling of 20402020301 in words is "twenty billion, four hundred two million, twenty thousand, three hundred one".

Divisors: 1 13 101 103 257 587 1313 1339 3341 7631 10403 25957 26471 59287 60461 135239 150859 337441 344123 770731 785993 1961167 2673571 6106561 15236759 15538477 34756423 79385293 198077867 202000201 1569386177 20402020301