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100218008 = 23112195449
BaseRepresentation
bin1011111100100…
…11010010011000
320222120121021002
411332103102120
5201123434013
613540004132
72324560532
oct576232230
9228517232
10100218008
1151630300
1229690648
13179bbac7
14d44a852
158be9358
hex5f93498

100218008 has 48 divisors (see below), whose sum is σ = 217455000. Its totient is φ = 43148160.

The previous prime is 100217987. The next prime is 100218011. The reversal of 100218008 is 800812001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15668 + ... + 21116.

Almost surely, 2100218008 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 100218008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108727500).

100218008 is an abundant number, since it is smaller than the sum of its proper divisors (117236992).

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

100218008 is a wasteful number, since it uses less digits than its factorization.

100218008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496 (or 5481 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 100218008 is about 10010.8944655310. The cubic root of 100218008 is about 464.4959397094.

The spelling of 100218008 in words is "one hundred million, two hundred eighteen thousand, eight".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 121 152 209 242 418 484 836 968 1672 2299 4598 5449 9196 10898 18392 21796 43592 59939 103531 119878 207062 239756 414124 479512 659329 828248 1138841 1318658 2277682 2637316 4555364 5274632 9110728 12527251 25054502 50109004 100218008