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2808202828052 = 221594214403753
BaseRepresentation
bin101000110111010101111…
…011101001100100010100
3100221110110111001102122002
4220313111323221210110
5332002144410444202
65550023124254432
7406612612123466
oct50672573514424
910843414042562
102808202828052
11992a52317716
123942b9541418
13174a73a8b44b
1499cbc3da136
154d0ab4d2302
hex28dd5ee9914

2808202828052 has 12 divisors (see below), whose sum is σ = 4914386891316. Its totient is φ = 1404092287680.

The previous prime is 2808202828037. The next prime is 2808202828061. The reversal of 2808202828052 is 2508282028082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2563181788036 + 245021040016 = 1600994^2 + 494996^2 .

It is a super-2 number, since 2×28082028280522 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2808202827988 and 2808202828006.

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, 1564193 + ... + 2839560.

It is an arithmetic number, because the mean of its divisors is an integer number (409532240943).

Almost surely, 22808202828052 is an apocalyptic number.

It is an amenable number.

2808202828052 is a deficient number, since it is larger than the sum of its proper divisors (2106184063264).

2808202828052 is a wasteful number, since it uses less digits than its factorization.

2808202828052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563178 (or 4563176 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 47.

The spelling of 2808202828052 in words is "two trillion, eight hundred eight billion, two hundred two million, eight hundred twenty-eight thousand, fifty-two".

Divisors: 1 2 4 159421 318842 637684 4403753 8807506 17615012 702050707013 1404101414026 2808202828052