Search a number
-
+
989523175020 = 2235233123130509
BaseRepresentation
bin11100110011001000010…
…11010110011001101100
310111121010120102120110020
432121210023112121230
5112203020413100040
62034325231442140
7131330210131542
oct16314413263154
93447116376406
10989523175020
11351722043256
1213b939386350
137240887b913
1435c70c41d92
151ab16abbcd0
hexe6642d666c

989523175020 has 96 divisors (see below), whose sum is σ = 2984390922240. Its totient is φ = 244258164480.

The previous prime is 989523174977. The next prime is 989523175021. The reversal of 989523175020 is 20571325989.

989523175020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9895231750202 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989523175021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11522475 + ... + 11608034.

It is an arithmetic number, because the mean of its divisors is an integer number (31087405440).

Almost surely, 2989523175020 is an apocalyptic number.

It is an amenable number.

989523175020 is an abundant number, since it is smaller than the sum of its proper divisors (1994867747220).

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

989523175020 is a wasteful number, since it uses less digits than its factorization.

989523175020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23130575 (or 23130573 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 989523175020 in words is "nine hundred eighty-nine billion, five hundred twenty-three million, one hundred seventy-five thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 31 46 60 62 69 92 93 115 124 138 155 186 230 276 310 345 372 460 465 620 690 713 930 1380 1426 1860 2139 2852 3565 4278 7130 8556 10695 14260 21390 42780 23130509 46261018 69391527 92522036 115652545 138783054 231305090 277566108 346957635 462610180 532001707 693915270 717045779 1064003414 1387830540 1434091558 1596005121 2128006828 2151137337 2660008535 2868183116 3192010242 3585228895 4302274674 5320017070 6384020484 7170457790 7980025605 8604549348 10640034140 10755686685 14340915580 15960051210 16492052917 21511373370 31920102420 32984105834 43022746740 49476158751 65968211668 82460264585 98952317502 164920529170 197904635004 247380793755 329841058340 494761587510 989523175020