Search a number
-
+
70107033672 = 23321359221517
BaseRepresentation
bin100000101001010110…
…1000111000001001000
320200221212202022110200
41001102231013001020
52122034400034142
652112353012200
75031213645114
oct1012255070110
9220855668420
1070107033672
1127806658055
1211706854060
1367c36817a0
143570d18744
151c54c0464c
hex1052b47048

70107033672 has 144 divisors (see below), whose sum is σ = 208012999740. Its totient is φ = 21204792576.

The previous prime is 70107033671. The next prime is 70107033683. The reversal of 70107033672 is 27633070107.

It can be written as a sum of positive squares in 2 ways, for example, as 65144394756 + 4962638916 = 255234^2 + 70446^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70107033671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3247458 + ... + 3268974.

Almost surely, 270107033672 is an apocalyptic number.

70107033672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70107033672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104006499870).

70107033672 is an abundant number, since it is smaller than the sum of its proper divisors (137905966068).

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

70107033672 is a wasteful number, since it uses less digits than its factorization.

70107033672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660 (or 21594 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The spelling of 70107033672 in words is "seventy billion, one hundred seven million, thirty-three thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 59 72 78 104 117 118 156 177 234 236 312 354 468 472 531 708 767 936 1062 1416 1534 2124 2301 3068 3481 4248 4602 6136 6903 6962 9204 10443 13806 13924 18408 20886 21517 27612 27848 31329 41772 43034 45253 55224 62658 64551 83544 86068 90506 125316 129102 135759 172136 181012 193653 250632 258204 271518 279721 362024 387306 407277 516408 543036 559442 774612 814554 839163 1086072 1118884 1269503 1549224 1629108 1678326 2237768 2517489 2539006 3258216 3356652 3808509 5034978 5078012 6713304 7617018 10069956 10156024 11425527 15234036 16503539 20139912 22851054 30468072 33007078 45702108 49510617 66014156 74900677 91404216 99021234 132028312 148531851 149801354 198042468 224702031 297063702 299602708 396084936 449404062 594127404 599205416 674106093 898808124 973708801 1188254808 1348212186 1797616248 1947417602 2696424372 2921126403 3894835204 5392848744 5842252806 7789670408 8763379209 11684505612 17526758418 23369011224 35053516836 70107033672