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30311030401431 = 3131964763223453
BaseRepresentation
bin1101110010001010101100…
…01100110010100110010111
310222022201001211021020101120
412321011112030302212113
512433103442240321211
6144244410052055023
76245620406234403
oct671052614624627
9128281054236346
1030311030401431
11972692150019a
123496592904473
1313bb41957b0c0
1476b0c1434103
153786d5a2ed06
hex1b9156332997

30311030401431 has 32 divisors (see below), whose sum is σ = 45885053975040. Its totient is φ = 17643895196544.

The previous prime is 30311030401411. The next prime is 30311030401439. The reversal of 30311030401431 is 13410403011303.

It is not a de Polignac number, because 30311030401431 - 222 = 30311026207127 is a prime.

It is a super-2 number, since 2×303110304014312 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311030401439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31132300 + ... + 32091153.

It is an arithmetic number, because the mean of its divisors is an integer number (1433907936720).

Almost surely, 230311030401431 is an apocalyptic number.

30311030401431 is a deficient number, since it is larger than the sum of its proper divisors (15574023573609).

30311030401431 is a wasteful number, since it uses less digits than its factorization.

30311030401431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63224135.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 30311030401431 its reverse (13410403011303), we get a palindrome (43721433412734).

The spelling of 30311030401431 in words is "thirty trillion, three hundred eleven billion, thirty million, four hundred one thousand, four hundred thirty-one".

Divisors: 1 3 13 19 39 57 247 647 741 1941 8411 12293 25233 36879 159809 479427 63223453 189670359 821904889 1201245607 2465714667 3603736821 15616192891 40905574091 46848578673 122716722273 531772463183 777205907729 1595317389549 2331617723187 10103676800477 30311030401431