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890908922472 = 233192490920947
BaseRepresentation
bin11001111011011100100…
…11110101001001101000
310011011120222022111100020
430331232103311021220
5104044040141004342
61521140010040440
7121236360615222
oct14755623651150
93134528274306
10890908922472
11313917951788
121247b7719120
136602119a5aa
1431197c63412
151829435e0ec
hexcf6e4f5268

890908922472 has 96 divisors (see below), whose sum is σ = 2351257984800. Its totient is φ = 281268920448.

The previous prime is 890908922441. The next prime is 890908922473. The reversal of 890908922472 is 274229809098.

It is not an unprimeable number, because it can be changed into a prime (890908922473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42521103 + ... + 42542049.

It is an arithmetic number, because the mean of its divisors is an integer number (24492270675).

Almost surely, 2890908922472 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 890908922472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175628992400).

890908922472 is an abundant number, since it is smaller than the sum of its proper divisors (1460349062328).

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

890908922472 is a wasteful number, since it uses less digits than its factorization.

890908922472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903 (or 25880 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 890908922472 in words is "eight hundred ninety billion, nine hundred eight million, nine hundred twenty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 361 456 722 1083 1444 2166 2888 4332 4909 8664 9818 14727 19636 20947 29454 39272 41894 58908 62841 83788 93271 117816 125682 167576 186542 251364 279813 373084 397993 502728 559626 746168 795986 1119252 1193979 1591972 1772149 2238504 2387958 3183944 3544298 4775916 5316447 7088596 7561867 9551832 10632894 14177192 15123734 21265788 22685601 30247468 42531576 45371202 60494936 90742404 102828823 181484808 205657646 308486469 411315292 616972938 822630584 1233945876 1953747637 2467891752 3907495274 5861242911 7814990548 11722485822 15629981096 23444971644 37121205103 46889943288 74242410206 111363615309 148484820412 222727230618 296969640824 445454461236 890908922472