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31032322021230 = 2355579918538159
BaseRepresentation
bin1110000111001010001101…
…00001111101011101101110
311001212122211212200222122120
413003211012201331131232
513031413143414134410
6150000015114453410
76352003603653255
oct703450641753556
9131778755628576
1031032322021230
119984808851992
123592331a34266
131441448b8542a
14793d8839d79c
1538c34de3a570
hex1c394687d76e

31032322021230 has 32 divisors (see below), whose sum is σ = 74478911616000. Its totient is φ = 8275137120672.

The previous prime is 31032322021177. The next prime is 31032322021243. The reversal of 31032322021230 is 3212022323013.

It is a self number, because there is not a number n which added to its sum of digits gives 31032322021230.

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, 7595110 + ... + 10943049.

It is an arithmetic number, because the mean of its divisors is an integer number (2327465988000).

Almost surely, 231032322021230 is an apocalyptic number.

31032322021230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31032322021230 is an abundant number, since it is smaller than the sum of its proper divisors (43446589594770).

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

31032322021230 is a wasteful number, since it uses less digits than its factorization.

31032322021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593968.

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

Adding to 31032322021230 its reverse (3212022323013), we get a palindrome (34244344344243).

The spelling of 31032322021230 in words is "thirty-one trillion, thirty-two billion, three hundred twenty-two million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 55799 111598 167397 278995 334794 557990 836985 1673970 18538159 37076318 55614477 92690795 111228954 185381590 278072385 556144770 1034410734041 2068821468082 3103232202123 5172053670205 6206464404246 10344107340410 15516161010615 31032322021230