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49993580 = 22571322113
BaseRepresentation
bin1011111010110…
…1011101101100
310111001221022002
42332231131230
5100244243310
64543311432
71144636610
oct276553554
9114057262
1049993580
1126246a0a
12148ab578
13a485500
1468d5340
1545c7da5
hex2fad76c

49993580 has 72 divisors (see below), whose sum is σ = 129985632. Its totient is φ = 15814656.

The previous prime is 49993547. The next prime is 49993589. The reversal of 49993580 is 8539994.

It is not an unprimeable number, because it can be changed into a prime (49993589) 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 23 ways as a sum of consecutive naturals, for example, 22604 + ... + 24716.

It is an arithmetic number, because the mean of its divisors is an integer number (1805356).

Almost surely, 249993580 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 49993580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64992816).

49993580 is an abundant number, since it is smaller than the sum of its proper divisors (79992052).

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

49993580 is a wasteful number, since it uses less digits than its factorization.

49993580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 49993580 is about 7070.6138347388. The cubic root of 49993580 is about 368.3873815343.

The spelling of 49993580 in words is "forty-nine million, nine hundred ninety-three thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 169 182 260 338 364 455 676 845 910 1183 1690 1820 2113 2366 3380 4226 4732 5915 8452 10565 11830 14791 21130 23660 27469 29582 42260 54938 59164 73955 109876 137345 147910 192283 274690 295820 357097 384566 549380 714194 769132 961415 1428388 1785485 1922830 2499679 3570970 3845660 4999358 7141940 9998716 12498395 24996790 49993580