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8007223 = 71279007
BaseRepresentation
bin11110100010111000110111
3120001210211211
4132202320313
54022212343
6443342251
7125026450
oct36427067
916053754
108007223
114579a44
122821987
131874803
1410c6127
15a8279d
hex7a2e37

8007223 has 8 divisors (see below), whose sum is σ = 9224192. Its totient is φ = 6808536.

The previous prime is 8007211. The next prime is 8007229. The reversal of 8007223 is 3227008.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-8007223 is a prime.

It is a Duffinian number.

8007223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8007194 and 8007203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8007229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3615 + ... + 5392.

It is an arithmetic number, because the mean of its divisors is an integer number (1153024).

Almost surely, 28007223 is an apocalyptic number.

8007223 is a deficient number, since it is larger than the sum of its proper divisors (1216969).

8007223 is a wasteful number, since it uses less digits than its factorization.

8007223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 8007223 is about 2829.7036947355. The cubic root of 8007223 is about 200.0601735606.

The spelling of 8007223 in words is "eight million, seven thousand, two hundred twenty-three".

Divisors: 1 7 127 889 9007 63049 1143889 8007223