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50570000 = 245413389
BaseRepresentation
bin1100000011101…
…0001100010000
310112011012222222
43000322030100
5100421220000
65003520212
71152560255
oct300721420
9115135888
1050570000
11265aaa98
1214b29068
13a6279a0
146a0542c
15468da85
hex303a310

50570000 has 100 divisors (see below), whose sum is σ = 132192060. Its totient is φ = 18624000.

The previous prime is 50569999. The next prime is 50570017. The reversal of 50570000 is 7505.

It can be written as a sum of positive squares in 10 ways, for example, as 49168144 + 1401856 = 7012^2 + 1184^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129806 + ... + 130194.

Almost surely, 250570000 is an apocalyptic number.

50570000 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 50570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66096030).

50570000 is an abundant number, since it is smaller than the sum of its proper divisors (81622060).

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

50570000 is a wasteful number, since it uses less digits than its factorization.

50570000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 17.

The square root of 50570000 is about 7111.2586790244. The cubic root of 50570000 is about 369.7977955298.

Adding to 50570000 its reverse (7505), we get a palindrome (50577505).

The spelling of 50570000 in words is "fifty million, five hundred seventy thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 125 130 200 208 250 260 325 389 400 500 520 625 650 778 1000 1040 1250 1300 1556 1625 1945 2000 2500 2600 3112 3250 3890 5000 5057 5200 6224 6500 7780 8125 9725 10000 10114 13000 15560 16250 19450 20228 25285 26000 31120 32500 38900 40456 48625 50570 65000 77800 80912 97250 101140 126425 130000 155600 194500 202280 243125 252850 389000 404560 486250 505700 632125 778000 972500 1011400 1264250 1945000 2022800 2528500 3160625 3890000 5057000 6321250 10114000 12642500 25285000 50570000