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71380468 = 2223337649
BaseRepresentation
bin1000100000100…
…10110111110100
311222022111121001
410100102313310
5121233133333
611025533044
71524503215
oct420226764
9158274531
1071380468
1137324225
121baa4184
1311a32c83
1496a140c
1563eeb7d
hex4412df4

71380468 has 12 divisors (see below), whose sum is σ = 124985700. Its totient is φ = 35670272.

The previous prime is 71380447. The next prime is 71380493. The reversal of 71380468 is 86408317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11751184 + 59629284 = 3428^2 + 7722^2 .

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, 5508 + ... + 13156.

It is an arithmetic number, because the mean of its divisors is an integer number (10415475).

Almost surely, 271380468 is an apocalyptic number.

It is an amenable number.

71380468 is a deficient number, since it is larger than the sum of its proper divisors (53605232).

71380468 is a wasteful number, since it uses less digits than its factorization.

71380468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9986 (or 9984 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 71380468 is about 8448.6962307802. The cubic root of 71380468 is about 414.8201049303.

The spelling of 71380468 in words is "seventy-one million, three hundred eighty thousand, four hundred sixty-eight".

Divisors: 1 2 4 2333 4666 7649 9332 15298 30596 17845117 35690234 71380468