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2121052524 = 223280363059
BaseRepresentation
bin111111001101100…
…1011000101101100
312110211010122001220
41332123023011230
513320442140044
6550245303340
7103363435413
oct17633130554
95424118056
102121052524
11999308178
124b2404b50
1327a57c386
141619aa47a
15c6325019
hex7e6cb16c

2121052524 has 24 divisors (see below), whose sum is σ = 4950966720. Its totient is φ = 706754064.

The previous prime is 2121052523. The next prime is 2121052543. The reversal of 2121052524 is 4252501212.

It is a junction number, because it is equal to n+sod(n) for n = 2121052494 and 2121052503.

It is not an unprimeable number, because it can be changed into a prime (2121052523) 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, 2107 + ... + 65165.

It is an arithmetic number, because the mean of its divisors is an integer number (206290280).

Almost surely, 22121052524 is an apocalyptic number.

It is an amenable number.

2121052524 is an abundant number, since it is smaller than the sum of its proper divisors (2829914196).

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

2121052524 is a wasteful number, since it uses less digits than its factorization.

2121052524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65869 (or 65867 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2121052524 is about 46054.8859948649. The cubic root of 2121052524 is about 1284.8442177677.

Adding to 2121052524 its reverse (4252501212), we get a palindrome (6373553736).

The spelling of 2121052524 in words is "two billion, one hundred twenty-one million, fifty-two thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 2803 5606 8409 11212 16818 33636 63059 126118 189177 252236 378354 756708 176754377 353508754 530263131 707017508 1060526262 2121052524