Search a number
-
+
71896448 = 271343207
BaseRepresentation
bin1000100100100…
…00110110000000
312000021201101102
410102100312000
5121401141243
611044553532
71532052431
oct422206600
9160251342
1071896448
1137646958
12200b28a8
1311b83aa0
149797488
1564a29b8
hex4490d80

71896448 has 32 divisors (see below), whose sum is σ = 154252560. Its totient is φ = 33182208.

The previous prime is 71896441. The next prime is 71896549. The reversal of 71896448 is 84469817.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71896441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19940 + ... + 23267.

Almost surely, 271896448 is an apocalyptic number.

It is an amenable number.

71896448 is an abundant number, since it is smaller than the sum of its proper divisors (82356112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71896448 is a wasteful number, since it uses less digits than its factorization.

71896448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43234 (or 43222 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 71896448 is about 8479.1773185846. The cubic root of 71896448 is about 415.8172274016.

The spelling of 71896448 in words is "seventy-one million, eight hundred ninety-six thousand, four hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 832 1664 43207 86414 172828 345656 561691 691312 1123382 1382624 2246764 2765248 4493528 5530496 8987056 17974112 35948224 71896448