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50312500 = 2257723
BaseRepresentation
bin1011111111101…
…1010100110100
310111200010202221
42333323110310
5100340000000
64554212124
71150435450
oct277732464
9114603687
1050312500
1126444587
1214a24044
13a567714
146979660
15463c61a
hex2ffb534

50312500 has 96 divisors (see below), whose sum is σ = 131249664. Its totient is φ = 16500000.

The previous prime is 50312467. The next prime is 50312527. The reversal of 50312500 is 521305.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2187489 + ... + 2187511.

It is an arithmetic number, because the mean of its divisors is an integer number (1367184).

Almost surely, 250312500 is an apocalyptic number.

50312500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65624832).

50312500 is an abundant number, since it is smaller than the sum of its proper divisors (80937164).

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

50312500 is an frugal number, since it uses more digits than its factorization.

50312500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 50312500 is about 7093.1304795556. The cubic root of 50312500 is about 369.1690629832.

Adding to 50312500 its reverse (521305), we get a palindrome (50833805).

It can be divided in two parts, 50 and 312500, that multiplied together give a cube (15625000 = 2503).

The spelling of 50312500 in words is "fifty million, three hundred twelve thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 23 25 28 35 46 50 70 92 100 115 125 140 161 175 230 250 322 350 460 500 575 625 644 700 805 875 1150 1250 1610 1750 2300 2500 2875 3125 3220 3500 4025 4375 5750 6250 8050 8750 11500 12500 14375 15625 16100 17500 20125 21875 28750 31250 40250 43750 57500 62500 71875 78125 80500 87500 100625 109375 143750 156250 201250 218750 287500 312500 359375 402500 437500 503125 546875 718750 1006250 1093750 1437500 1796875 2012500 2187500 2515625 3593750 5031250 7187500 10062500 12578125 25156250 50312500