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401031001 = 7571100333
BaseRepresentation
bin10111111001110…
…011111101011001
31000221121111010001
4113321303331121
51310130443001
6103443253001
712636464410
oct2771637531
91027544101
10401031001
1119640a588
12b237a161
1365112967
143b392477
1525319001
hex17e73f59

401031001 has 8 divisors (see below), whose sum is σ = 459128384. Its totient is φ = 343135440.

The previous prime is 401030999. The next prime is 401031041. The reversal of 401031001 is 100130104.

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 401031001 - 21 = 401030999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401031041) 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, 46170 + ... + 54163.

It is an arithmetic number, because the mean of its divisors is an integer number (57391048).

Almost surely, 2401031001 is an apocalyptic number.

It is an amenable number.

401031001 is a deficient number, since it is larger than the sum of its proper divisors (58097383).

401031001 is a wasteful number, since it uses less digits than its factorization.

401031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100911.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 401031001 is about 20025.7584375723. The cubic root of 401031001 is about 737.4387966447.

Adding to 401031001 its reverse (100130104), we get a palindrome (501161105).

The spelling of 401031001 in words is "four hundred one million, thirty-one thousand, one".

Divisors: 1 7 571 3997 100333 702331 57290143 401031001