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71200423 = 729350741
BaseRepresentation
bin1000011111001…
…10111010100111
311221222100121201
410033212322213
5121211403143
611022023331
71523123260
oct417467247
9157870551
1071200423
1137210a28
121ba17b47
131199c038
149655967
1563b664d
hex43e6ea7

71200423 has 8 divisors (see below), whose sum is σ = 84178080. Its totient is φ = 58924320.

The previous prime is 71200421. The next prime is 71200427. The reversal of 71200423 is 32400217.

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

It is not a de Polignac number, because 71200423 - 21 = 71200421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71200423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71200421) 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, 175168 + ... + 175573.

It is an arithmetic number, because the mean of its divisors is an integer number (10522260).

Almost surely, 271200423 is an apocalyptic number.

71200423 is a deficient number, since it is larger than the sum of its proper divisors (12977657).

71200423 is a wasteful number, since it uses less digits than its factorization.

71200423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350777.

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

The square root of 71200423 is about 8438.0343090082. The cubic root of 71200423 is about 414.4710404010.

The spelling of 71200423 in words is "seventy-one million, two hundred thousand, four hundred twenty-three".

Divisors: 1 7 29 203 350741 2455187 10171489 71200423