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1057052017 = 7151007431
BaseRepresentation
bin111111000000010…
…101010101110001
32201200000210202201
4333000111111301
54131101131032
6252520143201
735123536210
oct7700252561
92650023681
101057052017
114a275090a
12256007b01
1313acc4388
14a055d077
1562c008e7
hex3f015571

1057052017 has 4 divisors (see below), whose sum is σ = 1208059456. Its totient is φ = 906044580.

The previous prime is 1057052011. The next prime is 1057052039. The reversal of 1057052017 is 7102507501.

1057052017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7102507501 = 19336800557.

It is a de Polignac number, because none of the positive numbers 2k-1057052017 is a prime.

It is a super-2 number, since 2×10570520172 = 2234717933287536578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057052011) 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, 75503709 + ... + 75503722.

It is an arithmetic number, because the mean of its divisors is an integer number (302014864).

Almost surely, 21057052017 is an apocalyptic number.

It is an amenable number.

1057052017 is a deficient number, since it is larger than the sum of its proper divisors (151007439).

1057052017 is an equidigital number, since it uses as much as digits as its factorization.

1057052017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151007438.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 1057052017 is about 32512.3363817490. The cubic root of 1057052017 is about 1018.6667242856. Note that the first 3 decimals are identical.

Adding to 1057052017 its reverse (7102507501), we get a palindrome (8159559518).

The spelling of 1057052017 in words is "one billion, fifty-seven million, fifty-two thousand, seventeen".

Divisors: 1 7 151007431 1057052017