Search a number
-
+
9838345660 = 22511136751343
BaseRepresentation
bin10010010100110100…
…10011110110111100
3221101122120202001121
421022122103312330
5130122104030120
64304125520324
7465542362333
oct111232236674
927348522047
109838345660
114199542790
121aa6a130a4
13c0a36aa10
146948c2d1a
153c8aca5aa
hex24a693dbc

9838345660 has 96 divisors (see below), whose sum is σ = 24635261952. Its totient is φ = 3253029120.

The previous prime is 9838345637. The next prime is 9838345661. The reversal of 9838345660 is 665438389.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 9838345598 and 9838345607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9838345661) 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, 165949 + ... + 217291.

It is an arithmetic number, because the mean of its divisors is an integer number (256617312).

Almost surely, 29838345660 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 9838345660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12317630976).

9838345660 is an abundant number, since it is smaller than the sum of its proper divisors (14796916292).

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

9838345660 is a wasteful number, since it uses less digits than its factorization.

9838345660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51443 (or 51441 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The square root of 9838345660 is about 99188.4351121642. The cubic root of 9838345660 is about 2142.7624426678.

The spelling of 9838345660 in words is "nine billion, eight hundred thirty-eight million, three hundred forty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 67 110 130 134 143 220 260 268 286 335 572 670 715 737 871 1340 1430 1474 1742 2860 2948 3484 3685 4355 7370 8710 9581 14740 17420 19162 38324 47905 51343 95810 102686 191620 205372 256715 513430 564773 667459 1026860 1129546 1334918 2259092 2669836 2823865 3337295 3439981 5647730 6674590 6879962 7342049 11295460 13349180 13759924 14684098 17199905 29368196 34399810 36710245 37839791 44719753 68799620 73420490 75679582 89439506 146840980 151359164 178879012 189198955 223598765 378397910 447197530 491917283 756795820 894395060 983834566 1967669132 2459586415 4919172830 9838345660