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47213002 = 223606501
BaseRepresentation
bin1011010000011…
…0100111001010
310021211200001201
42310012213022
544041304002
64403534414
71112206144
oct264064712
9107750051
1047213002
1124717911
121398a40a
139a209b5
1463adc94
154229087
hex2d069ca

47213002 has 4 divisors (see below), whose sum is σ = 70819506. Its totient is φ = 23606500.

The previous prime is 47212981. The next prime is 47213009. The reversal of 47213002 is 20031274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20031274 = 210015637.

It can be written as a sum of positive squares in only one way, i.e., 45846441 + 1366561 = 6771^2 + 1169^2 .

It is not an unprimeable number, because it can be changed into a prime (47213009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11803249 + ... + 11803252.

Almost surely, 247213002 is an apocalyptic number.

47213002 is a deficient number, since it is larger than the sum of its proper divisors (23606504).

47213002 is a wasteful number, since it uses less digits than its factorization.

47213002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23606503.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 47213002 is about 6871.1718069046. The cubic root of 47213002 is about 361.4269547290.

Adding to 47213002 its reverse (20031274), we get a palindrome (67244276).

The spelling of 47213002 in words is "forty-seven million, two hundred thirteen thousand, two".

Divisors: 1 2 23606501 47213002