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402202031401 = 3747569228517
BaseRepresentation
bin1011101101001010001…
…10111111010100101001
31102110011011002011012101
411312211012333110221
523042202210001101
6504434041213401
741025640600432
oct5664506772451
91373134064171
10402202031401
1114563361a165
1265b48791261
132bc099014c1
141567680c489
15a6dedb7401
hex5da51bf529

402202031401 has 8 divisors (see below), whose sum is σ = 413082847880. Its totient is φ = 391321767168.

The previous prime is 402202031347. The next prime is 402202031453. The reversal of 402202031401 is 104130202204.

It can be written as a sum of positive squares in 4 ways, for example, as 83073074176 + 319128957225 = 288224^2 + 564915^2 .

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 402202031401 - 211 = 402202029353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402202031801) 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, 1645795 + ... + 1874311.

It is an arithmetic number, because the mean of its divisors is an integer number (51635355985).

Almost surely, 2402202031401 is an apocalyptic number.

It is an amenable number.

402202031401 is a deficient number, since it is larger than the sum of its proper divisors (10880816479).

402202031401 is a wasteful number, since it uses less digits than its factorization.

402202031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276123.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 402202031401 its reverse (104130202204), we get a palindrome (506332233605).

The spelling of 402202031401 in words is "four hundred two billion, two hundred two million, thirty-one thousand, four hundred one".

Divisors: 1 37 47569 228517 1760053 8455129 10870325173 402202031401