Search a number
-
+
87452736 = 2637312099
BaseRepresentation
bin1010011011001…
…10110001000000
320002120001121020
411031212301000
5134341441421
612402225440
72111223150
oct515466100
9202501536
1087452736
1145401598
1225355280
131516c6a7
14b886760
157a26dc6
hex5366c40

87452736 has 112 divisors (see below), whose sum is σ = 273100800. Its totient is φ = 24168960.

The previous prime is 87452671. The next prime is 87452741. The reversal of 87452736 is 63725478.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40615 + ... + 42713.

It is an arithmetic number, because the mean of its divisors is an integer number (2438400).

Almost surely, 287452736 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 87452736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136550400).

87452736 is an abundant number, since it is smaller than the sum of its proper divisors (185648064).

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

87452736 is a wasteful number, since it uses less digits than its factorization.

87452736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2142 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 87452736 is about 9351.6167586145. The cubic root of 87452736 is about 443.8720514368.

It can be divided in two parts, 87452 and 736, that added together give a palindrome (88188).

The spelling of 87452736 in words is "eighty-seven million, four hundred fifty-two thousand, seven hundred thirty-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 56 62 64 84 93 96 112 124 168 186 192 217 224 248 336 372 434 448 496 651 672 744 868 992 1302 1344 1488 1736 1984 2099 2604 2976 3472 4198 5208 5952 6297 6944 8396 10416 12594 13888 14693 16792 20832 25188 29386 33584 41664 44079 50376 58772 65069 67168 88158 100752 117544 130138 134336 176316 195207 201504 235088 260276 352632 390414 403008 455483 470176 520552 705264 780828 910966 940352 1041104 1366449 1410528 1561656 1821932 2082208 2732898 2821056 3123312 3643864 4164416 5465796 6246624 7287728 10931592 12493248 14575456 21863184 29150912 43726368 87452736