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1107965521 = 13223927431
BaseRepresentation
bin100001000001010…
…0011011001010001
32212012211110222001
41002002203121101
54232114344041
6301535314001
736312360115
oct10202433121
92765743861
101107965521
11519465993
1226b07b901
1314870c500
14a7213745
156740b131
hex420a3651

1107965521 has 12 divisors (see below), whose sum is σ = 1204813440. Its totient is φ = 1018421040.

The previous prime is 1107965519. The next prime is 1107965557. The reversal of 1107965521 is 1255697011.

It is not a de Polignac number, because 1107965521 - 21 = 1107965519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1107966521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26676 + ... + 54106.

It is an arithmetic number, because the mean of its divisors is an integer number (100401120).

Almost surely, 21107965521 is an apocalyptic number.

It is an amenable number.

1107965521 is a deficient number, since it is larger than the sum of its proper divisors (96847919).

1107965521 is a wasteful number, since it uses less digits than its factorization.

1107965521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696 (or 27683 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 37.

The square root of 1107965521 is about 33286.1160395742. The cubic root of 1107965521 is about 1034.7658368560.

The spelling of 1107965521 in words is "one billion, one hundred seven million, nine hundred sixty-five thousand, five hundred twenty-one".

Divisors: 1 13 169 239 3107 27431 40391 356603 4635839 6556009 85228117 1107965521