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52804120 = 2357118593
BaseRepresentation
bin1100100101101…
…1101000011000
310200100201122011
43021123220120
5102004212440
65123435304
71210553605
oct311335030
9120321564
1052804120
1127896576
1215825b34
13ac2a855
1470276ac
1549809ea
hex325ba18

52804120 has 32 divisors (see below), whose sum is σ = 120489120. Its totient is φ = 20823040.

The previous prime is 52804117. The next prime is 52804127. The reversal of 52804120 is 2140825.

It is a junction number, because it is equal to n+sod(n) for n = 52804091 and 52804100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52804127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6457 + ... + 12136.

It is an arithmetic number, because the mean of its divisors is an integer number (3765285).

Almost surely, 252804120 is an apocalyptic number.

It is an amenable number.

52804120 is an abundant number, since it is smaller than the sum of its proper divisors (67685000).

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

52804120 is a wasteful number, since it uses less digits than its factorization.

52804120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18675 (or 18671 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52804120 is about 7266.6443424734. The cubic root of 52804120 is about 375.1652486518.

Adding to 52804120 its reverse (2140825), we get a palindrome (54944945).

The spelling of 52804120 in words is "fifty-two million, eight hundred four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 18593 37186 74372 92965 148744 185930 371860 743720 1320103 2640206 5280412 6600515 10560824 13201030 26402060 52804120