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2007113257 = 12771571741
BaseRepresentation
bin111011110100010…
…0001111000101001
312011212201220210001
41313220201320221
513102310111012
6531055223001
7100511116102
oct16750417051
95155656701
102007113257
1193aa65996
12480217a61
1325ca97ca6
141507cb3a9
15bb31a357
hex77a21e29

2007113257 has 4 divisors (see below), whose sum is σ = 2008686276. Its totient is φ = 2005540240.

The previous prime is 2007113243. The next prime is 2007113293. The reversal of 2007113257 is 7523117002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1381162896 + 625950361 = 37164^2 + 25019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2007113257 - 223 = 1998724649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2007113557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784594 + ... + 787147.

It is an arithmetic number, because the mean of its divisors is an integer number (502171569).

Almost surely, 22007113257 is an apocalyptic number.

It is an amenable number.

2007113257 is a deficient number, since it is larger than the sum of its proper divisors (1573019).

2007113257 is a wasteful number, since it uses less digits than its factorization.

2007113257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573018.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2007113257 is about 44800.8175929860. The cubic root of 2007113257 is about 1261.4129729230.

The spelling of 2007113257 in words is "two billion, seven million, one hundred thirteen thousand, two hundred fifty-seven".

Divisors: 1 1277 1571741 2007113257