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538417008 = 243259127499
BaseRepresentation
bin100000000101111…
…001011101110000
31101112010102021200
4200011321131300
52100313321013
6125232051200
716225316613
oct4005713560
91345112250
10538417008
11256a16738
12130393b00
138771625c
145171617a
1532405e73
hex20179770

538417008 has 120 divisors (see below), whose sum is σ = 1547520000. Its totient is φ = 174690432.

The previous prime is 538416997. The next prime is 538417039. The reversal of 538417008 is 800714835.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1078743 + ... + 1079241.

It is an arithmetic number, because the mean of its divisors is an integer number (12896000).

Almost surely, 2538417008 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 538417008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773760000).

538417008 is an abundant number, since it is smaller than the sum of its proper divisors (1009102992).

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

538417008 is a wasteful number, since it uses less digits than its factorization.

538417008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 538417008 is about 23203.8145139975. The cubic root of 538417008 is about 813.5287836888.

The spelling of 538417008 in words is "five hundred thirty-eight million, four hundred seventeen thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 59 72 118 127 144 177 236 254 354 381 472 499 508 531 708 762 944 998 1016 1062 1143 1416 1497 1524 1996 2032 2124 2286 2832 2994 3048 3992 4248 4491 4572 5988 6096 7493 7984 8496 8982 9144 11976 14986 17964 18288 22479 23952 29441 29972 35928 44958 58882 59944 63373 67437 71856 88323 89916 117764 119888 126746 134874 176646 179832 190119 235528 253492 264969 269748 353292 359664 380238 471056 506984 529938 539496 570357 706584 760476 1013968 1059876 1078992 1140714 1413168 1520952 2119752 2281428 3041904 3739007 4239504 4562856 7478014 9125712 11217021 14956028 22434042 29912056 33651063 44868084 59824112 67302126 89736168 134604252 179472336 269208504 538417008