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71423806 = 249172733
BaseRepresentation
bin1000100000111…
…01011100111110
311222101201001011
410100131130332
5121241030211
611030505434
71525043446
oct420353476
9158351034
1071423806
1137353843
121bb0527a
1311a4990c
1496b3126
15640c921
hex441d73e

71423806 has 8 divisors (see below), whose sum is σ = 107355384. Its totient is φ = 35638680.

The previous prime is 71423791. The next prime is 71423813. The reversal of 71423806 is 60832417.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35385 + ... + 37348.

It is an arithmetic number, because the mean of its divisors is an integer number (13419423).

Almost surely, 271423806 is an apocalyptic number.

71423806 is a deficient number, since it is larger than the sum of its proper divisors (35931578).

71423806 is a wasteful number, since it uses less digits than its factorization.

71423806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73226.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 71423806 is about 8451.2606160265. The cubic root of 71423806 is about 414.9040393601.

The spelling of 71423806 in words is "seventy-one million, four hundred twenty-three thousand, eight hundred six".

Divisors: 1 2 491 982 72733 145466 35711903 71423806