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100006109987 = 719751925639
BaseRepresentation
bin101110100100011010…
…1000010001100100011
3100120010121010202120112
41131020311002030203
53114303031004422
6113535302001535
710140146623610
oct1351065021443
9316117122515
10100006109987
1139459929683
121746ba162ab
139579b6b814
144ba9bb1507
152904a44ee2
hex1748d42323

100006109987 has 8 divisors (see below), whose sum is σ = 120308102400. Its totient is φ = 81207968904.

The previous prime is 100006109981. The next prime is 100006110059. The reversal of 100006109987 is 789901600001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100006109987 - 216 = 100006044451 is a prime.

It is a super-2 number, since 2×1000061099872 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100006109981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375962687 + ... + 375962952.

It is an arithmetic number, because the mean of its divisors is an integer number (15038512800).

Almost surely, 2100006109987 is an apocalyptic number.

100006109987 is a deficient number, since it is larger than the sum of its proper divisors (20301992413).

100006109987 is an equidigital number, since it uses as much as digits as its factorization.

100006109987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751925665.

The product of its (nonzero) digits is 27216, while the sum is 41.

Adding to 100006109987 its reverse (789901600001), we get a palindrome (889907709988).

The spelling of 100006109987 in words is "one hundred billion, six million, one hundred nine thousand, nine hundred eighty-seven".

Divisors: 1 7 19 133 751925639 5263479473 14286587141 100006109987