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53459380 = 225131271619
BaseRepresentation
bin1100101111101…
…1100110110100
310201121000111001
43023323212310
5102141200010
65145453044
71216253152
oct313734664
9121530431
1053459380
11281a3907
1215aa1184
13b0c9b90
1471583d2
154a5ec3a
hex32fb9b4

53459380 has 48 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 19571328.

The previous prime is 53459359. The next prime is 53459381. The reversal of 53459380 is 8395435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53459381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32211 + ... + 33829.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 253459380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53459380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60963840).

53459380 is an abundant number, since it is smaller than the sum of its proper divisors (68468300).

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

53459380 is a wasteful number, since it uses less digits than its factorization.

53459380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 53459380 is about 7311.5921658692. The cubic root of 53459380 is about 376.7107143866.

The spelling of 53459380 in words is "fifty-three million, four hundred fifty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 127 130 254 260 508 635 1270 1619 1651 2540 3238 3302 6476 6604 8095 8255 16190 16510 21047 32380 33020 42094 84188 105235 205613 210470 411226 420940 822452 1028065 2056130 2672969 4112260 5345938 10691876 13364845 26729690 53459380