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7505005057 = 115312873079
BaseRepresentation
bin1101111110101010…
…10100101000000001
3201101000222202111021
412333111110220001
5110332240130212
63240414145441
7353660330134
oct67725245001
921330882437
107505005057
11320141a420
1215554b2281
13927b211c4
14512a5621b
152ddd20307
hex1bf554a01

7505005057 has 8 divisors (see below), whose sum is σ = 8341755840. Its totient is φ = 6694000560.

The previous prime is 7505005049. The next prime is 7505005063.

7505005057 is nontrivially palindromic in base 10.

7505005057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7505005057 - 23 = 7505005049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7505006057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6435957 + ... + 6437122.

It is an arithmetic number, because the mean of its divisors is an integer number (1042719480).

Almost surely, 27505005057 is an apocalyptic number.

It is an amenable number.

7505005057 is a deficient number, since it is larger than the sum of its proper divisors (836750783).

7505005057 is a wasteful number, since it uses less digits than its factorization.

7505005057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873143.

The product of its (nonzero) digits is 30625, while the sum is 34.

The square root of 7505005057 is about 86631.4322691250. The cubic root of 7505005057 is about 1957.8691489989.

It can be divided in two parts, 750500 and 5057, that added together give a palindrome (755557).

The spelling of 7505005057 in words is "seven billion, five hundred five million, five thousand, fifty-seven".

Divisors: 1 11 53 583 12873079 141603869 682273187 7505005057