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50843440 = 2451374639
BaseRepresentation
bin1100000111110…
…0111100110000
310112200010002101
43001330330300
5101003442230
65013430144
71155106414
oct301747460
9115603071
1050843440
112677747a
121503b354
13a6c229b
146a76d44
1546e4aca
hex307cf30

50843440 has 40 divisors (see below), whose sum is σ = 119099520. Its totient is φ = 20184576.

The previous prime is 50843437. The next prime is 50843477. The reversal of 50843440 is 4434805.

50843440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 50843399 and 50843408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8641 + ... + 13279.

It is an arithmetic number, because the mean of its divisors is an integer number (2977488).

Almost surely, 250843440 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 50843440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59549760).

50843440 is an abundant number, since it is smaller than the sum of its proper divisors (68256080).

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

50843440 is a wasteful number, since it uses less digits than its factorization.

50843440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789 (or 4783 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 50843440 is about 7130.4586107767. The cubic root of 50843440 is about 370.4631162201.

The spelling of 50843440 in words is "fifty million, eight hundred forty-three thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 137 274 548 685 1096 1370 2192 2740 4639 5480 9278 10960 18556 23195 37112 46390 74224 92780 185560 371120 635543 1271086 2542172 3177715 5084344 6355430 10168688 12710860 25421720 50843440