Search a number
-
+
83111424 = 293114919
BaseRepresentation
bin1001111010000…
…10111000000000
312210101111102220
410331002320000
5132234031144
612125211040
72026302234
oct475027000
9183344386
1083111424
1142a06930
1223a00a80
13142ac676
14b0765c4
15746a919
hex4f42e00

83111424 has 80 divisors (see below), whose sum is σ = 241591680. Its totient is φ = 25180160.

The previous prime is 83111401. The next prime is 83111437. The reversal of 83111424 is 42411138.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 83111394 and 83111403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14437 + ... + 19355.

It is an arithmetic number, because the mean of its divisors is an integer number (3019896).

Almost surely, 283111424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120795840).

83111424 is an abundant number, since it is smaller than the sum of its proper divisors (158480256).

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

83111424 is a wasteful number, since it uses less digits than its factorization.

83111424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951 (or 4935 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 83111424 is about 9116.5467146283. The cubic root of 83111424 is about 436.4021763940.

It can be divided in two parts, 831114 and 24, that added together give a palindrome (831138).

The spelling of 83111424 in words is "eighty-three million, one hundred eleven thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1056 1408 1536 2112 2816 4224 4919 5632 8448 9838 14757 16896 19676 29514 39352 54109 59028 78704 108218 118056 157408 162327 216436 236112 314816 324654 432872 472224 629632 649308 865744 944448 1259264 1298616 1731488 1888896 2518528 2597232 3462976 3777792 5194464 6925952 7555584 10388928 13851904 20777856 27703808 41555712 83111424