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53009748 = 22331144621
BaseRepresentation
bin1100101000110…
…1110101010100
310200202011201000
43022031311110
5102032302443
65132103300
71212401241
oct312156524
9120664630
1053009748
1127a17010
1215904b30
13aca031c
14707c5c8
1549c18d3
hex328dd54

53009748 has 48 divisors (see below), whose sum is σ = 149929920. Its totient is φ = 16063200.

The previous prime is 53009743. The next prime is 53009771. The reversal of 53009748 is 84790035.

53009748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53009743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21123 + ... + 23498.

It is an arithmetic number, because the mean of its divisors is an integer number (3123540).

Almost surely, 253009748 is an apocalyptic number.

It is an amenable number.

53009748 is an abundant number, since it is smaller than the sum of its proper divisors (96920172).

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

53009748 is a wasteful number, since it uses less digits than its factorization.

53009748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44645 (or 44637 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 53009748 is about 7280.7793538879. The cubic root of 53009748 is about 375.6516031132.

The spelling of 53009748 in words is "fifty-three million, nine thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 44621 89242 133863 178484 267726 401589 490831 535452 803178 981662 1204767 1472493 1606356 1963324 2409534 2944986 4417479 4819068 5889972 8834958 13252437 17669916 26504874 53009748