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55311200405013 = 3773111732301133
BaseRepresentation
bin11001001001110001001000…
…11100111100011000010101
321020211200212122201221112110
430210320210130330120111
524222204314300430023
6313345340434341233
714436050052113640
oct1444704434743025
9236750778657473
1055311200405013
1116695391739a13
12625382112a819
1324b2a92c09c17
14d9310d84ca57
1565db87eb8a93
hex324e2473c615

55311200405013 has 32 divisors (see below), whose sum is σ = 85514797378816. Its totient is φ = 31145526701568.

The previous prime is 55311200404987. The next prime is 55311200405039. The reversal of 55311200405013 is 31050400211355.

It is an interprime number because it is at equal distance from previous prime (55311200404987) and next prime (55311200405039).

It is not a de Polignac number, because 55311200405013 - 214 = 55311200388629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55311200405063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14438206 + ... + 17862927.

It is an arithmetic number, because the mean of its divisors is an integer number (2672337418088).

Almost surely, 255311200405013 is an apocalyptic number.

It is an amenable number.

55311200405013 is a deficient number, since it is larger than the sum of its proper divisors (30203596973803).

55311200405013 is a wasteful number, since it uses less digits than its factorization.

55311200405013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32302333.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 55311200405013 its reverse (31050400211355), we get a palindrome (86361600616368).

The spelling of 55311200405013 in words is "fifty-five trillion, three hundred eleven billion, two hundred million, four hundred five thousand, thirteen".

Divisors: 1 3 7 21 73 219 511 1117 1533 3351 7819 23457 81541 244623 570787 1712361 32301133 96903399 226107931 678323793 2357982709 7073948127 16505878963 36080365561 49517636889 108241096683 252562558927 757687676781 2633866685953 7901600057859 18437066801671 55311200405013