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2552134987 = 15907160441
BaseRepresentation
bin1001100000011110…
…0111110101001011
320120212021220001001
42120013213311023
520211321304422
61101125035431
7120146534533
oct23007476513
96525256031
102552134987
11109a682876
125b2855b77
1331898455c
141a2d424c3
15ee0c8227
hex981e7d4b

2552134987 has 4 divisors (see below), whose sum is σ = 2552311336. Its totient is φ = 2551958640.

The previous prime is 2552134957. The next prime is 2552134997. The reversal of 2552134987 is 7894312552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2552134987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552134957) 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 3 ways as a sum of consecutive naturals, for example, 64314 + ... + 96127.

It is an arithmetic number, because the mean of its divisors is an integer number (638077834).

Almost surely, 22552134987 is an apocalyptic number.

2552134987 is a deficient number, since it is larger than the sum of its proper divisors (176349).

2552134987 is a wasteful number, since it uses less digits than its factorization.

2552134987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176348.

The product of its digits is 604800, while the sum is 46.

The square root of 2552134987 is about 50518.6597902201. The cubic root of 2552134987 is about 1366.5783844686.

The spelling of 2552134987 in words is "two billion, five hundred fifty-two million, one hundred thirty-four thousand, nine hundred eighty-seven".

Divisors: 1 15907 160441 2552134987