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52400943 = 3272313833
BaseRepresentation
bin1100011111100…
…1001100101111
310122121020120200
43013321030233
5101403312233
65111044543
71204254300
oct307711457
9118536520
1052400943
1127640671
1215670753
13ab1919a
146d607a7
154901313
hex31f932f

52400943 has 36 divisors (see below), whose sum is σ = 90911808. Its totient is φ = 28969920.

The previous prime is 52400893. The next prime is 52400963. The reversal of 52400943 is 34900425.

It is not a de Polignac number, because 52400943 - 28 = 52400687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400963) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11755 + ... + 15587.

It is an arithmetic number, because the mean of its divisors is an integer number (2525328).

Almost surely, 252400943 is an apocalyptic number.

52400943 is a deficient number, since it is larger than the sum of its proper divisors (38510865).

52400943 is a wasteful number, since it uses less digits than its factorization.

52400943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 52400943 is about 7238.8495632939. The cubic root of 52400943 is about 374.2079710180.

The spelling of 52400943 in words is "fifty-two million, four hundred thousand, nine hundred forty-three".

Divisors: 1 3 7 9 21 31 49 63 93 147 217 279 441 651 1519 1953 3833 4557 11499 13671 26831 34497 80493 118823 187817 241479 356469 563451 831761 1069407 1690353 2495283 5822327 7485849 17466981 52400943