Search a number
-
+
50130828 = 223211711783
BaseRepresentation
bin1011111100111…
…0111110001100
310111022220120100
42333032332030
5100313141303
64550251100
71146051006
oct277167614
9114286510
1050130828
1126330040
1214956a90
13a502b17
14692d376
1546038a3
hex2fcef8c

50130828 has 72 divisors (see below), whose sum is σ = 140265216. Its totient is φ = 14968800.

The previous prime is 50130809. The next prime is 50130833. The reversal of 50130828 is 82803105.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 27225 + ... + 29007.

It is an arithmetic number, because the mean of its divisors is an integer number (1948128).

Almost surely, 250130828 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 50130828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70132608).

50130828 is an abundant number, since it is smaller than the sum of its proper divisors (90134388).

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

50130828 is a wasteful number, since it uses less digits than its factorization.

50130828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 50130828 is about 7080.3127049587. The cubic root of 50130828 is about 368.7241863382.

It can be divided in two parts, 501 and 30828, that added together give a square (31329 = 1772).

The spelling of 50130828 in words is "fifty million, one hundred thirty thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 71 99 132 142 198 213 284 396 426 639 781 852 1278 1562 1783 2343 2556 3124 3566 4686 5349 7029 7132 9372 10698 14058 16047 19613 21396 28116 32094 39226 58839 64188 78452 117678 126593 176517 235356 253186 353034 379779 506372 706068 759558 1139337 1392523 1519116 2278674 2785046 4177569 4557348 5570092 8355138 12532707 16710276 25065414 50130828