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31312222023030 = 2351380287748777
BaseRepresentation
bin1110001111010011100011…
…10111101110110101110110
311002212102022120221022101220
413013221301313232311312
513101004412314214110
6150332345231131210
76411143023505034
oct707516167566566
9132772276838356
1031312222023030
119a8249102a023
123618627973b06
131461964696680
147a373bc29554
15394781bc9370
hex1c7a71deed76

31312222023030 has 32 divisors (see below), whose sum is σ = 80930050768224. Its totient is φ = 7707623882496.

The previous prime is 31312222023001. The next prime is 31312222023059. The reversal of 31312222023030 is 3032022221313.

It is an interprime number because it is at equal distance from previous prime (31312222023001) and next prime (31312222023059).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40143873999 + ... + 40143874778.

It is an arithmetic number, because the mean of its divisors is an integer number (2529064086507).

Almost surely, 231312222023030 is an apocalyptic number.

31312222023030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31312222023030 is an abundant number, since it is smaller than the sum of its proper divisors (49617828745194).

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

31312222023030 is a wasteful number, since it uses less digits than its factorization.

31312222023030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80287748800.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31312222023030 its reverse (3032022221313), we get a palindrome (34344244244343).

The spelling of 31312222023030 in words is "thirty-one trillion, three hundred twelve billion, two hundred twenty-two million, twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 80287748777 160575497554 240863246331 401438743885 481726492662 802877487770 1043740734101 1204316231655 2087481468202 2408632463310 3131222202303 5218703670505 6262444404606 10437407341010 15656111011515 31312222023030