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47500012 = 227389389
BaseRepresentation
bin1011010100110…
…0101011101100
310022101020202201
42311030223230
544130000022
64414031244
71114513000
oct265145354
9108336681
1047500012
11248a350a
1213aa8524
139ac1521
146446700
154284127
hex2d4caec

47500012 has 48 divisors (see below), whose sum is σ = 98280000. Its totient is φ = 20076672.

The previous prime is 47500009. The next prime is 47500039. The reversal of 47500012 is 21000574.

It is a super-2 number, since 2×475000122 = 4512502280000288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121914 + ... + 122302.

It is an arithmetic number, because the mean of its divisors is an integer number (2047500).

Almost surely, 247500012 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 47500012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49140000).

47500012 is an abundant number, since it is smaller than the sum of its proper divisors (50779988).

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

47500012 is a wasteful number, since it uses less digits than its factorization.

47500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 47500012 is about 6892.0252466166. The cubic root of 47500012 is about 362.1578526696.

Adding to 47500012 its reverse (21000574), we get a palindrome (68500586).

The spelling of 47500012 in words is "forty-seven million, five hundred thousand, twelve".

Divisors: 1 2 4 7 14 28 49 89 98 178 196 343 356 389 623 686 778 1246 1372 1556 2492 2723 4361 5446 8722 10892 17444 19061 30527 34621 38122 61054 69242 76244 122108 133427 138484 242347 266854 484694 533708 969388 1696429 3392858 6785716 11875003 23750006 47500012