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52140783 = 329035987
BaseRepresentation
bin1100011011100…
…1101011101111
310122010000201010
43012321223233
5101322001113
65101320303
71202121642
oct306715357
9118100633
1052140783
1127483162
1215566093
13aa57946
146cd3a59
15489e1c3
hex31b9aef

52140783 has 8 divisors (see below), whose sum is σ = 69556608. Its totient is φ = 34742744.

The previous prime is 52140757. The next prime is 52140821. The reversal of 52140783 is 38704125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52140783 - 212 = 52136687 is a prime.

It is a super-2 number, since 2×521407832 = 5437322503706178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52140783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52140703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716 + ... + 11702.

It is an arithmetic number, because the mean of its divisors is an integer number (8694576).

Almost surely, 252140783 is an apocalyptic number.

52140783 is a deficient number, since it is larger than the sum of its proper divisors (17415825).

52140783 is a wasteful number, since it uses less digits than its factorization.

52140783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52140783 is about 7220.8574975553. The cubic root of 52140783 is about 373.5876545364.

The spelling of 52140783 in words is "fifty-two million, one hundred forty thousand, seven hundred eighty-three".

Divisors: 1 3 2903 5987 8709 17961 17380261 52140783