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2235680245780 = 225142978225341
BaseRepresentation
bin100000100010001000111…
…011010100100000010100
321220201200101210211011221
4200202020323110200110
5243112133120331110
64431020214340124
7320344145353162
oct40421073244024
97821611724157
102235680245780
1179216823a813
1230135895a644
13132a929bacc7
147a2c9552232
153d24daa17da
hex20888ed4814

2235680245780 has 24 divisors (see below), whose sum is σ = 4698214040520. Its totient is φ = 893646284160.

The previous prime is 2235680245723. The next prime is 2235680245789. The reversal of 2235680245780 is 875420865322.

It can be written as a sum of positive squares in 4 ways, for example, as 6266938896 + 2229413306884 = 79164^2 + 1493122^2 .

It is a super-2 number, since 2×22356802457802 (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 (2235680245789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39084091 + ... + 39141250.

It is an arithmetic number, because the mean of its divisors is an integer number (195758918355).

Almost surely, 22235680245780 is an apocalyptic number.

2235680245780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235680245780 is an abundant number, since it is smaller than the sum of its proper divisors (2462533794740).

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

2235680245780 is a wasteful number, since it uses less digits than its factorization.

2235680245780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78226779 (or 78226777 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 2235680245780 in words is "two trillion, two hundred thirty-five billion, six hundred eighty million, two hundred forty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1429 2858 5716 7145 14290 28580 78225341 156450682 312901364 391126705 782253410 1564506820 111784012289 223568024578 447136049156 558920061445 1117840122890 2235680245780