Search a number
-
+
83919472 = 2471357637
BaseRepresentation
bin1010000000010…
…00001001110000
312211220112212121
411000020021300
5132440410342
612154404024
72036206120
oct500101160
9184815777
1083919472
1143408a3a
1224130614
13145033c0
14b206c80
15757a067
hex5008270

83919472 has 40 divisors (see below), whose sum is σ = 200119136. Its totient is φ = 33198336.

The previous prime is 83919467. The next prime is 83919491. The reversal of 83919472 is 27491938.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27363 + ... + 30274.

Almost surely, 283919472 is an apocalyptic number.

It is an amenable number.

83919472 is an abundant number, since it is smaller than the sum of its proper divisors (116199664).

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

83919472 is a wasteful number, since it uses less digits than its factorization.

83919472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57665 (or 57659 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 83919472 is about 9160.7571739458. The cubic root of 83919472 is about 437.8119192760.

The spelling of 83919472 in words is "eighty-three million, nine hundred nineteen thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 57637 115274 230548 403459 461096 749281 806918 922192 1498562 1613836 2997124 3227672 5244967 5994248 6455344 10489934 11988496 20979868 41959736 83919472