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100107018 = 23211717121
BaseRepresentation
bin1011111011110…
…00001100001010
320222100222000100
411331320030022
5201111411033
613533350230
72323616124
oct575701412
9228328010
10100107018
1151564980
1229638376
131798042b
14d41c214
158bc6513
hex5f7830a

100107018 has 48 divisors (see below), whose sum is σ = 239982912. Its totient is φ = 29904000.

The previous prime is 100107013. The next prime is 100107019. The reversal of 100107018 is 810701001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100107013) 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, 10498 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (4999644).

Almost surely, 2100107018 is an apocalyptic number.

100107018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100107018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119991456).

100107018 is an abundant number, since it is smaller than the sum of its proper divisors (139875894).

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

100107018 is a wasteful number, since it uses less digits than its factorization.

100107018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211 (or 7208 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 100107018 is about 10005.3494691590. The cubic root of 100107018 is about 464.3244021816.

Adding to 100107018 its reverse (810701001), we get a palindrome (910808019).

The spelling of 100107018 in words is "one hundred million, one hundred seven thousand, eighteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 71 99 142 198 213 426 639 781 1278 1562 2343 4686 7029 7121 14058 14242 21363 42726 64089 78331 128178 156662 234993 469986 505591 704979 1011182 1409958 1516773 3033546 4550319 5561501 9100638 11123002 16684503 33369006 50053509 100107018