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71945486 = 253678731
BaseRepresentation
bin1000100100111…
…00110100001110
312000101012122122
410102130310032
5121404223421
611050012542
71532345414
oct422346416
9160335578
1071945486
113767a788
1220117152
1311ba01c2
1497ab2b4
1564b22ab
hex449cd0e

71945486 has 8 divisors (see below), whose sum is σ = 109954584. Its totient is φ = 35293960.

The previous prime is 71945477. The next prime is 71945519. The reversal of 71945486 is 68454917.

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, 339260 + ... + 339471.

It is an arithmetic number, because the mean of its divisors is an integer number (13744323).

Almost surely, 271945486 is an apocalyptic number.

71945486 is a deficient number, since it is larger than the sum of its proper divisors (38009098).

71945486 is a wasteful number, since it uses less digits than its factorization.

71945486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678786.

The product of its digits is 241920, while the sum is 44.

The square root of 71945486 is about 8482.0684977192. The cubic root of 71945486 is about 415.9117439439.

The spelling of 71945486 in words is "seventy-one million, nine hundred forty-five thousand, four hundred eighty-six".

Divisors: 1 2 53 106 678731 1357462 35972743 71945486