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31230310330324 = 2275350341838337
BaseRepresentation
bin1110001100111010111111…
…00011011010111111010100
311002120120220000122012000101
413012131133203122333110
513043134133421032244
6150231001223223444
76402213126554230
oct706353743327724
9132516800565011
1031230310330324
119a50778010a16
1236047878a7b84
13145700c495b51
1479d7ab2215c0
1539258a98d0d4
hex1c675f8dafd4

31230310330324 has 48 divisors (see below), whose sum is σ = 63765643592448. Its totient is φ = 13105775075328.

The previous prime is 31230310330187. The next prime is 31230310330337. The reversal of 31230310330324 is 42303301303213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 31230310330292 and 31230310330301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20172717 + ... + 21665620.

It is an arithmetic number, because the mean of its divisors is an integer number (1328450908176).

Almost surely, 231230310330324 is an apocalyptic number.

It is an amenable number.

31230310330324 is an abundant number, since it is smaller than the sum of its proper divisors (32535333262124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31230310330324 is a wasteful number, since it uses less digits than its factorization.

31230310330324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41838904 (or 41838902 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31230310330324 its reverse (42303301303213), we get a palindrome (73533611633537).

The spelling of 31230310330324 in words is "thirty-one trillion, two hundred thirty billion, three hundred ten million, three hundred thirty thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 53 106 212 371 503 742 1006 1484 2012 3521 7042 14084 26659 53318 106636 186613 373226 746452 41838337 83676674 167353348 292868359 585736718 1171473436 2217431861 4434863722 8869727444 15522023027 21044683511 31044046054 42089367022 62088092108 84178734044 147312784577 294625569154 589251138308 1115368226083 2230736452166 4461472904332 7807577582581 15615155165162 31230310330324