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13011075 = 3252711751
BaseRepresentation
bin110001101000…
…100010000011
3220111000211200
4301220202003
511312323300
61142512243
7215410110
oct61504203
926430750
1013011075
117387460
124435683
13290727c
141a29907
151220200
hexc68883

13011075 has 72 divisors (see below), whose sum is σ = 29093376. Its totient is φ = 5400000.

The previous prime is 13011073. The next prime is 13011079. The reversal of 13011075 is 57011031.

It is a happy number.

It is not a de Polignac number, because 13011075 - 21 = 13011073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13011071) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16950 + ... + 17700.

Almost surely, 213011075 is an apocalyptic number.

13011075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13011075 is an abundant number, since it is smaller than the sum of its proper divisors (16082301).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13011075 is a wasteful number, since it uses less digits than its factorization.

13011075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 13011075 is about 3607.0867746701. The cubic root of 13011075 is about 235.2002216956.

The spelling of 13011075 in words is "thirteen million, eleven thousand, seventy-five".

Divisors: 1 3 5 7 9 11 15 21 25 33 35 45 55 63 75 77 99 105 165 175 225 231 275 315 385 495 525 693 751 825 1155 1575 1925 2253 2475 3465 3755 5257 5775 6759 8261 11265 15771 17325 18775 24783 26285 33795 41305 47313 56325 57827 74349 78855 123915 131425 168975 173481 206525 236565 289135 371745 394275 520443 619575 867405 1182825 1445675 1858725 2602215 4337025 13011075