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53450670 = 23572132797
BaseRepresentation
bin1100101111100…
…1011110101110
310201120120112110
43023321132232
5102140410140
65145344450
71216215600
oct313713656
9121516473
1053450670
1128198309
1215a98126
13b0c5c20
147155170
154a5c380
hex32f97ae

53450670 has 96 divisors (see below), whose sum is σ = 160761888. Its totient is φ = 11273472.

The previous prime is 53450651. The next prime is 53450671. The reversal of 53450670 is 7605435.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450671) 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 47 ways as a sum of consecutive naturals, for example, 17712 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (1674603).

Almost surely, 253450670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53450670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80380944).

53450670 is an abundant number, since it is smaller than the sum of its proper divisors (107311218).

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

53450670 is a wasteful number, since it uses less digits than its factorization.

53450670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 53450670 is about 7310.9965121042. The cubic root of 53450670 is about 376.6902544378.

The spelling of 53450670 in words is "fifty-three million, four hundred fifty thousand, six hundred seventy".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 49 65 70 78 91 98 105 130 147 182 195 210 245 273 294 390 455 490 546 637 735 910 1274 1365 1470 1911 2730 2797 3185 3822 5594 6370 8391 9555 13985 16782 19110 19579 27970 36361 39158 41955 58737 72722 83910 97895 109083 117474 137053 181805 195790 218166 254527 274106 293685 363610 411159 509054 545415 587370 685265 763581 822318 1090830 1272635 1370530 1527162 1781689 2055795 2545270 3563378 3817905 4111590 5345067 7635810 8908445 10690134 17816890 26725335 53450670