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401000100001 = 1031388942871
BaseRepresentation
bin1011101010111010111…
…01111111000010100001
31102100001101102201021121
411311131131333002201
523032222011200001
6504114503452241
740654104416314
oct5653535770241
91370041381247
10401000100001
11145077114326
1265872157081
132ba778b1ba7
14155a0d3897b
15a66e5e96a1
hex5d5d77f0a1

401000100001 has 4 divisors (see below), whose sum is σ = 401389043904. Its totient is φ = 400611156100.

The previous prime is 401000099977. The next prime is 401000100029. The reversal of 401000100001 is 100001000104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401000100001 - 221 = 400998002849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401000100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194470405 + ... + 194472466.

It is an arithmetic number, because the mean of its divisors is an integer number (100347260976).

Almost surely, 2401000100001 is an apocalyptic number.

It is an amenable number.

401000100001 is a deficient number, since it is larger than the sum of its proper divisors (388943903).

401000100001 is a wasteful number, since it uses less digits than its factorization.

401000100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388943902.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 401000100001 its reverse (100001000104), we get a palindrome (501001100105).

The spelling of 401000100001 in words is "four hundred one billion, one hundred thousand, one".

Divisors: 1 1031 388942871 401000100001