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101123660 = 225111094217
BaseRepresentation
bin1100000011100…
…00011001001100
321001021121120202
412001300121030
5201341424120
614011233032
72335352111
oct601603114
9231247522
10101123660
1152099780
1229a48778
1317c480b1
14d604908
158d27875
hex607064c

101123660 has 48 divisors (see below), whose sum is σ = 233845920. Its totient is φ = 36426240.

The previous prime is 101123653. The next prime is 101123717. The reversal of 101123660 is 66321101.

It is a super-2 number, since 2×1011236602 = 20451989223591200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21872 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (4871790).

Almost surely, 2101123660 is an apocalyptic number.

101123660 is a gapful number since it is divisible by the number (10) 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 101123660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116922960).

101123660 is an abundant number, since it is smaller than the sum of its proper divisors (132722260).

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

101123660 is a wasteful number, since it uses less digits than its factorization.

101123660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4344 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 101123660 is about 10056.0260540633. The cubic root of 101123660 is about 465.8909345842.

Adding to 101123660 its reverse (66321101), we get a palindrome (167444761).

The spelling of 101123660 in words is "one hundred one million, one hundred twenty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 109 110 218 220 436 545 1090 1199 2180 2398 4217 4796 5995 8434 11990 16868 21085 23980 42170 46387 84340 92774 185548 231935 459653 463870 919306 927740 1838612 2298265 4596530 5056183 9193060 10112366 20224732 25280915 50561830 101123660