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100512430451401 = 127778709812413
BaseRepresentation
bin10110110110101001011111…
…101101100110101011001001
3111011212220011002121121012011
4112312221133231212223021
5101133243424143421101
6553434434553415521
730112532504125663
oct2666513755465311
9434786132547164
10100512430451401
112a03209a6aa801
12b333b9570a5a1
13441138766c3b7
141ab6b82ca3533
15b9485b84e751
hex5b6a5fb66ac9

100512430451401 has 4 divisors (see below), whose sum is σ = 100591140265092. Its totient is φ = 100433720637712.

The previous prime is 100512430451387. The next prime is 100512430451429. The reversal of 100512430451401 is 104154034215001.

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 27388109223225 + 73124321228176 = 5233365^2 + 8551276^2 .

It is a cyclic number.

It is not a de Polignac number, because 100512430451401 - 29 = 100512430450889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100512430451441) 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, 39354904930 + ... + 39354907483.

It is an arithmetic number, because the mean of its divisors is an integer number (25147785066273).

Almost surely, 2100512430451401 is an apocalyptic number.

It is an amenable number.

100512430451401 is a deficient number, since it is larger than the sum of its proper divisors (78709813691).

100512430451401 is an equidigital number, since it uses as much as digits as its factorization.

100512430451401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78709813690.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 100512430451401 its reverse (104154034215001), we get a palindrome (204666464666402).

The spelling of 100512430451401 in words is "one hundred trillion, five hundred twelve billion, four hundred thirty million, four hundred fifty-one thousand, four hundred one".

Divisors: 1 1277 78709812413 100512430451401