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2057711045 = 51322435161
BaseRepresentation
bin111101010100110…
…0010110111000101
312022101221112220012
41322221202313011
513203233223140
6540103520005
7101664153365
oct17251426705
95271845805
102057711045
11966584845
12495159005
1326a402500
141573dc9a5
15c09b2265
hex7aa62dc5

2057711045 has 12 divisors (see below), whose sum is σ = 2673807876. Its totient is φ = 1519539840.

The previous prime is 2057711027. The next prime is 2057711053. The reversal of 2057711045 is 5401177502.

It is a Cunningham number, because it is equal to 453622+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1020291364 + 1037419681 = 31942^2 + 32209^2 .

It is a de Polignac number, because none of the positive numbers 2k-2057711045 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1216736 + ... + 1218425.

It is an arithmetic number, because the mean of its divisors is an integer number (222817323).

Almost surely, 22057711045 is an apocalyptic number.

It is an amenable number.

2057711045 is a deficient number, since it is larger than the sum of its proper divisors (616096831).

2057711045 is a wasteful number, since it uses less digits than its factorization.

2057711045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435192 (or 2435179 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 2057711045 is about 45362.0000110224. Note that the first 4 decimals coincide. The cubic root of 2057711045 is about 1271.9248808944.

Adding to 2057711045 its reverse (5401177502), we get a palindrome (7458888547).

The spelling of 2057711045 in words is "two billion, fifty-seven million, seven hundred eleven thousand, forty-five".

Divisors: 1 5 13 65 169 845 2435161 12175805 31657093 158285465 411542209 2057711045