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50287984 = 2419433847
BaseRepresentation
bin1011111111010…
…1010101110000
310111121220010221
42333311111300
5100333203414
64553502424
71150304125
oct277652560
9114556127
1050287984
112642811a
1214a11a14
13a559506
14697074c
154635224
hex2ff5570

50287984 has 40 divisors (see below), whose sum is σ = 104973440. Its totient is φ = 23260608.

The previous prime is 50287931. The next prime is 50287987. The reversal of 50287984 is 48978205.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 50287984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50287987) 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, 11149 + ... + 14995.

It is an arithmetic number, because the mean of its divisors is an integer number (2624336).

Almost surely, 250287984 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 50287984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52486720).

50287984 is an abundant number, since it is smaller than the sum of its proper divisors (54685456).

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

50287984 is a wasteful number, since it uses less digits than its factorization.

50287984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 50287984 is about 7091.4021180582. The cubic root of 50287984 is about 369.1090910135.

It can be divided in two parts, 502879 and 84, that multiplied together give a triangular number (42241836 = T9191).

The spelling of 50287984 in words is "fifty million, two hundred eighty-seven thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 38 43 76 86 152 172 304 344 688 817 1634 3268 3847 6536 7694 13072 15388 30776 61552 73093 146186 165421 292372 330842 584744 661684 1169488 1323368 2646736 3142999 6285998 12571996 25143992 50287984