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1052688917 = 73183211277
BaseRepresentation
bin111110101111101…
…100001000010101
32201100211010201102
4332233230020111
54123442021132
6252242435445
735041464620
oct7657541025
92640733642
101052688917
114a0240845
12254662b85
1313a127467
149db44db7
156263cc62
hex3ebec215

1052688917 has 32 divisors (see below), whose sum is σ = 1267359744. Its totient is φ = 855489600.

The previous prime is 1052688913. The next prime is 1052688937. The reversal of 1052688917 is 7198862501.

It is not a de Polignac number, because 1052688917 - 22 = 1052688913 is a prime.

It is a super-2 number, since 2×10526889172 = 2216307911949265778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052688913) 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 31 ways as a sum of consecutive naturals, for example, 3800183 + ... + 3800459.

It is an arithmetic number, because the mean of its divisors is an integer number (39604992).

Almost surely, 21052688917 is an apocalyptic number.

It is an amenable number.

1052688917 is a deficient number, since it is larger than the sum of its proper divisors (214670827).

1052688917 is a wasteful number, since it uses less digits than its factorization.

1052688917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 1052688917 is about 32445.1678528560. The cubic root of 1052688917 is about 1017.2632380199.

The spelling of 1052688917 in words is "one billion, fifty-two million, six hundred eighty-eight thousand, nine hundred seventeen".

Divisors: 1 7 31 83 211 217 277 581 1477 1939 2573 6541 8587 17513 18011 22991 45787 58447 60109 122591 160937 409129 542903 712721 1811857 3800321 4851101 4989047 12682999 33957707 150384131 1052688917