Search a number
-
+
47145160 = 23510311443
BaseRepresentation
bin1011001111011…
…0000011001000
310021201020000001
42303312003020
544032121120
64402252344
71111504306
oct263660310
9107636001
1047145160
1124680947
12139570b4
1399c8b5a
146393276
154213e0a
hex2cf60c8

47145160 has 32 divisors (see below), whose sum is σ = 107115840. Its totient is φ = 18673344.

The previous prime is 47145151. The next prime is 47145173. The reversal of 47145160 is 6154174.

It is a super-2 number, since 2×471451602 = 4445332222851200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602 + ... + 9841.

It is an arithmetic number, because the mean of its divisors is an integer number (3347370).

Almost surely, 247145160 is an apocalyptic number.

47145160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47145160 is an abundant number, since it is smaller than the sum of its proper divisors (59970680).

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

47145160 is a wasteful number, since it uses less digits than its factorization.

47145160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557 (or 11553 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 47145160 is about 6866.2333196593. The cubic root of 47145160 is about 361.2537561021.

The spelling of 47145160 in words is "forty-seven million, one hundred forty-five thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 1030 2060 4120 11443 22886 45772 57215 91544 114430 228860 457720 1178629 2357258 4714516 5893145 9429032 11786290 23572580 47145160