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2057711004 = 223257158639
BaseRepresentation
bin111101010100110…
…0010110110011100
312022101221112211200
41322221202312130
513203233223004
6540103515500
7101664153306
oct17251426634
95271845750
102057711004
11966584808
12495158b90
1326a40249b
141573dc976
15c09b2239
hex7aa62d9c

2057711004 has 18 divisors (see below), whose sum is σ = 5201436240. Its totient is φ = 685903656.

The previous prime is 2057711003. The next prime is 2057711011. The reversal of 2057711004 is 4001177502.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057711003) 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 5 ways as a sum of consecutive naturals, for example, 28579284 + ... + 28579355.

It is an arithmetic number, because the mean of its divisors is an integer number (288968680).

Almost surely, 22057711004 is an apocalyptic number.

It is an amenable number.

2057711004 is an abundant number, since it is smaller than the sum of its proper divisors (3143725236).

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

2057711004 is a wasteful number, since it uses less digits than its factorization.

2057711004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57158649 (or 57158644 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 2057711004 is about 45361.9995591023. Note that the first 3 decimals coincide. The cubic root of 2057711004 is about 1271.9248724467.

Adding to 2057711004 its reverse (4001177502), we get a palindrome (6058888506).

The spelling of 2057711004 in words is "two billion, fifty-seven million, seven hundred eleven thousand, four".

Divisors: 1 2 3 4 6 9 12 18 36 57158639 114317278 171475917 228634556 342951834 514427751 685903668 1028855502 2057711004