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47243141 = 114294831
BaseRepresentation
bin1011010000110…
…1111110000101
310021220012101222
42310031332011
544043240031
64404330125
71112363051
oct264157605
9107805358
1047243141
1124738520
12139a3945
139a3162a
1463bac61
154232e7b
hex2d0df85

47243141 has 4 divisors (see below), whose sum is σ = 51537984. Its totient is φ = 42948300.

The previous prime is 47243137. The next prime is 47243143. The reversal of 47243141 is 14134274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47243141 - 22 = 47243137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47243141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47243143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2147405 + ... + 2147426.

It is an arithmetic number, because the mean of its divisors is an integer number (12884496).

Almost surely, 247243141 is an apocalyptic number.

It is an amenable number.

47243141 is a deficient number, since it is larger than the sum of its proper divisors (4294843).

47243141 is a wasteful number, since it uses less digits than its factorization.

47243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294842.

The product of its digits is 2688, while the sum is 26.

The square root of 47243141 is about 6873.3646054898. The cubic root of 47243141 is about 361.5038454826.

The spelling of 47243141 in words is "forty-seven million, two hundred forty-three thousand, one hundred forty-one".

Divisors: 1 11 4294831 47243141