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52149461 = 7134789137
BaseRepresentation
bin1100011011101…
…1110011010101
310122010110121112
43012323303111
5101322240321
65101424405
71202156150
oct306736325
9118113545
1052149461
1127489731
121556b105
13aa5b890
146cd6c97
1548a1a5b
hex31bbcd5

52149461 has 32 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 39638016.

The previous prime is 52149443. The next prime is 52149463. The reversal of 52149461 is 16494125.

It is a cyclic number.

It is not a de Polignac number, because 52149461 - 214 = 52133077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52149463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380585 + ... + 380721.

It is an arithmetic number, because the mean of its divisors is an integer number (2086560).

Almost surely, 252149461 is an apocalyptic number.

It is an amenable number.

52149461 is a deficient number, since it is larger than the sum of its proper divisors (14620459).

52149461 is a wasteful number, since it uses less digits than its factorization.

52149461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its digits is 8640, while the sum is 32.

The square root of 52149461 is about 7221.4583707171. The cubic root of 52149461 is about 373.6083792848.

The spelling of 52149461 in words is "fifty-two million, one hundred forty-nine thousand, four hundred sixty-one".

Divisors: 1 7 13 47 89 91 137 329 611 623 959 1157 1781 4183 4277 6439 8099 12193 12467 29281 45073 54379 83707 85351 158509 380653 573071 585949 1109563 4011497 7449923 52149461