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401301213013 = 1153348049621
BaseRepresentation
bin1011101011011110110…
…10101000111101010101
31102100211101000211200101
411311233122220331111
523033331102304023
6504204421414101
740664422012651
oct5655732507525
91370741024611
10401301213013
11145211088a58
1265936b6a331
132bac50ac47c
14155ccd1ba61
15a68ac781ad
hex5d6f6a8f55

401301213013 has 4 divisors (see below), whose sum is σ = 401649263788. Its totient is φ = 400953162240.

The previous prime is 401301213011. The next prime is 401301213029. The reversal of 401301213013 is 310312103104.

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 264666004849 + 136635208164 = 514457^2 + 369642^2 .

It is a cyclic number.

It is not a de Polignac number, because 401301213013 - 21 = 401301213011 is a prime.

It is a super-2 number, since 2×4013012130132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401301213011) 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, 174023658 + ... + 174025963.

It is an arithmetic number, because the mean of its divisors is an integer number (100412315947).

Almost surely, 2401301213013 is an apocalyptic number.

It is an amenable number.

401301213013 is a deficient number, since it is larger than the sum of its proper divisors (348050775).

401301213013 is a wasteful number, since it uses less digits than its factorization.

401301213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348050774.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 401301213013 its reverse (310312103104), we get a palindrome (711613316117).

The spelling of 401301213013 in words is "four hundred one billion, three hundred one million, two hundred thirteen thousand, thirteen".

Divisors: 1 1153 348049621 401301213013