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1052972857 is a prime number
BaseRepresentation
bin111110110000110…
…001011100111001
32201101100120012201
4332300301130321
54124030112412
6252252510201
735044056466
oct7660613471
92641316181
101052972857
114a0415102
1225477b361
1313a1c6781
149dbba66d
1562696e57
hex3ec31739

1052972857 has 2 divisors, whose sum is σ = 1052972858. Its totient is φ = 1052972856.

The previous prime is 1052972839. The next prime is 1052972887. The reversal of 1052972857 is 7582792501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962798841 + 90174016 = 31029^2 + 9496^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052972857 - 215 = 1052940089 is a prime.

It is a super-2 number, since 2×10529728572 = 2217503675157484898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052972807) 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 as a sum of consecutive naturals, namely, 526486428 + 526486429.

It is an arithmetic number, because the mean of its divisors is an integer number (526486429).

Almost surely, 21052972857 is an apocalyptic number.

It is an amenable number.

1052972857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052972857 is an equidigital number, since it uses as much as digits as its factorization.

1052972857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 1052972857 is about 32449.5432479411. The cubic root of 1052972857 is about 1017.3546913617.

The spelling of 1052972857 in words is "one billion, fifty-two million, nine hundred seventy-two thousand, eight hundred fifty-seven".