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50974840 = 23571710709
BaseRepresentation
bin1100001001110…
…1000001111000
310112220210100001
43002131001320
5101022143330
65020322344
71156164460
oct302350170
9115823301
1050974840
1126857174
12150a33b4
13a73a037
146aacba0
15471d9ca
hex309d078

50974840 has 64 divisors (see below), whose sum is σ = 138801600. Its totient is φ = 16447488.

The previous prime is 50974813. The next prime is 50974841. The reversal of 50974840 is 4847905.

It is a self number, because there is not a number n which added to its sum of digits gives 50974840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50974841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (2168775).

Almost surely, 250974840 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 50974840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69400800).

50974840 is an abundant number, since it is smaller than the sum of its proper divisors (87826760).

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

50974840 is a wasteful number, since it uses less digits than its factorization.

50974840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10744 (or 10740 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 50974840 is about 7139.6666588854. Note that the first 4 decimals coincide. The cubic root of 50974840 is about 370.7819838282.

The spelling of 50974840 in words is "fifty million, nine hundred seventy-four thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 68 70 85 119 136 140 170 238 280 340 476 595 680 952 1190 2380 4760 10709 21418 42836 53545 74963 85672 107090 149926 182053 214180 299852 364106 374815 428360 599704 728212 749630 910265 1274371 1456424 1499260 1820530 2548742 2998520 3641060 5097484 6371855 7282120 10194968 12743710 25487420 50974840