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2052220761 = 321912001291
BaseRepresentation
bin111101001010010…
…0110011101011001
312022000121121122100
41322110212131121
513200332031021
6535350114013
7101566405623
oct17224463531
95260547570
102052220761
11963474918
1249334b909
1326922c516
141567adc13
15c027a626
hex7a526759

2052220761 has 12 divisors (see below), whose sum is σ = 3120335920. Its totient is φ = 1296139320.

The previous prime is 2052220673. The next prime is 2052220769. The reversal of 2052220761 is 1670222502.

It is not a de Polignac number, because 2052220761 - 29 = 2052220249 is a prime.

It is a super-2 number, since 2×20522207612 = 8423220103758838242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2052220769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6000475 + ... + 6000816.

Almost surely, 22052220761 is an apocalyptic number.

It is an amenable number.

2052220761 is a deficient number, since it is larger than the sum of its proper divisors (1068115159).

2052220761 is a wasteful number, since it uses less digits than its factorization.

2052220761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001316 (or 12001313 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2052220761 is about 45301.4432551547. The cubic root of 2052220761 is about 1270.7926440444.

The spelling of 2052220761 in words is "two billion, fifty-two million, two hundred twenty thousand, seven hundred sixty-one".

Divisors: 1 3 9 19 57 171 12001291 36003873 108011619 228024529 684073587 2052220761