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1129699321 = 192292612
BaseRepresentation
bin100001101010101…
…1101011111111001
32220201201200010121
41003111131133321
54303200334241
6304033213241
736665200012
oct10325353771
92821650117
101129699321
1152a75a903
12276401221
1315007bb4a
14aa070009
15692a0ad1
hex4355d7f9

1129699321 has 27 divisors (see below), whose sum is σ = 1255392333. Its totient is φ = 1016396640.

The previous prime is 1129699313. The next prime is 1129699331. The reversal of 1129699321 is 1239969211.

The square root of 1129699321 is 33611.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 338964921 + 790734400 = 18411^2 + 28120^2 .

It is not a de Polignac number, because 1129699321 - 23 = 1129699313 is a prime.

It is a super-2 number, since 2×11296993212 = 2552441111735722082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129699301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18519631 + ... + 18519691.

Almost surely, 21129699321 is an apocalyptic number.

1129699321 is the 33611-st square number.

1129699321 is the 16806-th centered octagonal number.

It is an amenable number.

1129699321 is a deficient number, since it is larger than the sum of its proper divisors (125693012).

1129699321 is an frugal number, since it uses more digits than its factorization.

1129699321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 109 counting only the distinct ones).

The product of its digits is 52488, while the sum is 43.

The cubic root of 1129699321 is about 1041.4880452280.

The spelling of 1129699321 in words is "one billion, one hundred twenty-nine million, six hundred ninety-nine thousand, three hundred twenty-one".

Divisors: 1 19 29 61 361 551 841 1159 1769 3721 10469 15979 22021 33611 51301 70699 107909 303601 638609 974719 1343281 2050271 3129361 18519661 38955149 59457859 1129699321