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100881428801 = 896571125193
BaseRepresentation
bin101110111110100000…
…0000111000101000001
3100122101121012120020212
41131331000013011001
53123101121210201
6114202211043505
710200635665526
oct1357500070501
9318347176225
10100881428801
1139868a3365a
1217674ba0595
13968930314a
144c5014514d
1529567e8abb
hex177d007141

100881428801 has 4 divisors (see below), whose sum is σ = 100882643652. Its totient is φ = 100880213952.

The previous prime is 100881428761. The next prime is 100881428803. The reversal of 100881428801 is 108824188001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97843214401 + 3038214400 = 312799^2 + 55120^2 .

It is a cyclic number.

It is not a de Polignac number, because 100881428801 - 218 = 100881166657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100881428803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472940 + ... + 652253.

It is an arithmetic number, because the mean of its divisors is an integer number (25220660913).

Almost surely, 2100881428801 is an apocalyptic number.

It is an amenable number.

100881428801 is a deficient number, since it is larger than the sum of its proper divisors (1214851).

100881428801 is an equidigital number, since it uses as much as digits as its factorization.

100881428801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214850.

The product of its (nonzero) digits is 32768, while the sum is 41.

The spelling of 100881428801 in words is "one hundred billion, eight hundred eighty-one million, four hundred twenty-eight thousand, eight hundred one".

Divisors: 1 89657 1125193 100881428801