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402235530401 = 1723660913553
BaseRepresentation
bin1011101101001110001…
…10110001110010100001
31102110020111010002012002
411312213012301302201
523042234243433101
6504441235213345
741026525411235
oct5664706616241
91373214102162
10402235530401
1114565051a491
1265b57a47255
132bc1382ccb3
141567b04c5c5
15a6e2cd2d6b
hex5da71b1ca1

402235530401 has 4 divisors (see below), whose sum is σ = 425896443972. Its totient is φ = 378574616832.

The previous prime is 402235530397. The next prime is 402235530409. The reversal of 402235530401 is 104035532204.

It is a happy number.

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 253431696400 + 148803834001 = 503420^2 + 385751^2 .

It is a cyclic number.

It is not a de Polignac number, because 402235530401 - 22 = 402235530397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402235530409) 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, 11830456760 + ... + 11830456793.

It is an arithmetic number, because the mean of its divisors is an integer number (106474110993).

Almost surely, 2402235530401 is an apocalyptic number.

It is an amenable number.

402235530401 is a deficient number, since it is larger than the sum of its proper divisors (23660913571).

402235530401 is a wasteful number, since it uses less digits than its factorization.

402235530401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23660913570.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 402235530401 in words is "four hundred two billion, two hundred thirty-five million, five hundred thirty thousand, four hundred one".

Divisors: 1 17 23660913553 402235530401