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122231000031 = 3748859119129
BaseRepresentation
bin111000111010110001…
…0010000101111011111
3102200111111012011012020
41301311202100233133
54000312114000111
6132052510311223
711554666233450
oct1616542205737
9380444164166
10122231000031
11479242384a8
121b832ab8513
13b6ac480c2a
145cb7773127
1532a5c97906
hex1c75890bdf

122231000031 has 16 divisors (see below), whose sum is σ = 186262137600. Its totient is φ = 69844269888.

The previous prime is 122231000011. The next prime is 122231000041. The reversal of 122231000031 is 130000132221.

It is not a de Polignac number, because 122231000031 - 214 = 122230983647 is a prime.

It is a super-2 number, since 2×1222310000312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966475 + ... + 1085603.

It is an arithmetic number, because the mean of its divisors is an integer number (11641383600).

Almost surely, 2122231000031 is an apocalyptic number.

122231000031 is a deficient number, since it is larger than the sum of its proper divisors (64031137569).

122231000031 is a wasteful number, since it uses less digits than its factorization.

122231000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167998.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 122231000031 its reverse (130000132221), we get a palindrome (252231132252).

The spelling of 122231000031 in words is "one hundred twenty-two billion, two hundred thirty-one million, thirty-one", and thus it is an aban number.

Divisors: 1 3 7 21 48859 119129 146577 342013 357387 833903 1026039 2501709 5820523811 17461571433 40743666677 122231000031