[go: up one dir, main page]

Search a number
-
+
85024072 = 23717314367
BaseRepresentation
bin1010001000101…
…01110101001000
312220222200002201
411010111311020
5133231232242
612234205544
72051456410
oct504256510
9186880081
1085024072
1143aa2931
12245838b4
13147cc103
14b413640
1576e74b7
hex5115d48

85024072 has 128 divisors (see below), whose sum is σ = 206807040. Its totient is φ = 31933440.

The previous prime is 85024067. The next prime is 85024073. The reversal of 85024072 is 27042058.

It is a super-2 number, since 2×850240722 = 14458185638922368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 85024072.

It is not an unprimeable number, because it can be changed into a prime (85024073) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1268983 + ... + 1269049.

It is an arithmetic number, because the mean of its divisors is an integer number (1615680).

Almost surely, 285024072 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 85024072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103403520).

85024072 is an abundant number, since it is smaller than the sum of its proper divisors (121782968).

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

85024072 is a wasteful number, since it uses less digits than its factorization.

85024072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 85024072 is about 9220.8498523726. The cubic root of 85024072 is about 439.7244693704.

The spelling of 85024072 in words is "eighty-five million, twenty-four thousand, seventy-two".

Divisors: 1 2 4 7 8 14 17 28 31 34 43 56 62 67 68 86 119 124 134 136 172 217 238 248 268 301 344 434 469 476 527 536 602 731 868 938 952 1054 1139 1204 1333 1462 1736 1876 2077 2108 2278 2408 2666 2881 2924 3689 3752 4154 4216 4556 5117 5332 5762 5848 7378 7973 8308 9112 9331 10234 10664 11524 14539 14756 15946 16616 18662 20167 20468 22661 23048 29078 29512 31892 35309 37324 40334 40936 45322 48977 58156 63784 70618 74648 80668 89311 90644 97954 116312 141236 158627 161336 178622 181288 195908 247163 282472 317254 342839 357244 391816 494326 625177 634508 685678 714488 988652 1250354 1269016 1371356 1518287 1977304 2500708 2742712 3036574 5001416 6073148 10628009 12146296 21256018 42512036 85024072