Search a number
-
+
47243190 = 2351574773
BaseRepresentation
bin1011010000110…
…1111110110110
310021220012110210
42310031332312
544043240230
64404330250
71112363151
oct264157666
9107805423
1047243190
1124738565
12139a3986
139a31667
1463bac98
154232eb0
hex2d0dfb6

47243190 has 16 divisors (see below), whose sum is σ = 113383728. Its totient is φ = 12598176.

The previous prime is 47243179. The next prime is 47243201. The reversal of 47243190 is 9134274.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47243179) and next prime (47243201).

It is a super-2 number, since 2×472431902 = 4463838002752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1574773 = 47243190 / (4 + 7 + 2 + 4 + 3 + 1 + 9 + 0).

It is a congruent number.

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, 787357 + ... + 787416.

It is an arithmetic number, because the mean of its divisors is an integer number (7086483).

Almost surely, 247243190 is an apocalyptic number.

47243190 is an abundant number, since it is smaller than the sum of its proper divisors (66140538).

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

47243190 is a wasteful number, since it uses less digits than its factorization.

47243190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574783.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 47243190 is about 6873.3681699731. The cubic root of 47243190 is about 361.5039704650.

The spelling of 47243190 in words is "forty-seven million, two hundred forty-three thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1574773 3149546 4724319 7873865 9448638 15747730 23621595 47243190