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1311150532 = 221492199917
BaseRepresentation
bin100111000100110…
…1001000111000100
310101101011100101211
41032021221013010
510141123304112
6334034301204
744330411206
oct11611510704
93341140354
101311150532
1161312388a
12307127804
1317b840423
14c61c4776
157a1940a7
hex4e2691c4

1311150532 has 12 divisors (see below), whose sum is σ = 2309913900. Its totient is φ = 651175136.

The previous prime is 1311150527. The next prime is 1311150557. The reversal of 1311150532 is 2350511131.

It can be written as a sum of positive squares in 2 ways, for example, as 236359876 + 1074790656 = 15374^2 + 32784^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099363 + ... + 1100554.

It is an arithmetic number, because the mean of its divisors is an integer number (192492825).

Almost surely, 21311150532 is an apocalyptic number.

It is an amenable number.

1311150532 is a deficient number, since it is larger than the sum of its proper divisors (998763368).

1311150532 is a wasteful number, since it uses less digits than its factorization.

1311150532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200070 (or 2200068 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1311150532 is about 36209.8126479550. The cubic root of 1311150532 is about 1094.5044168712.

Adding to 1311150532 its reverse (2350511131), we get a palindrome (3661661663).

The spelling of 1311150532 in words is "one billion, three hundred eleven million, one hundred fifty thousand, five hundred thirty-two".

Divisors: 1 2 4 149 298 596 2199917 4399834 8799668 327787633 655575266 1311150532