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131222130032 = 2474012921761
BaseRepresentation
bin111101000110101110…
…0101100110101110000
3110112201002120212212002
41322031130230311300
54122220331130112
6140141013353132
712323543462450
oct1721534546560
9415632525762
10131222130032
1150718520554
12215220387a8
13c4b3146ab6
1464cb919d60
1536302c11c2
hex1e8d72cd70

131222130032 has 40 divisors (see below), whose sum is σ = 291287984352. Its totient is φ = 56097792000.

The previous prime is 131222130001. The next prime is 131222130071. The reversal of 131222130032 is 230031222131.

It is a junction number, because it is equal to n+sod(n) for n = 131222129986 and 131222130013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415969 + ... + 1505792.

Almost surely, 2131222130032 is an apocalyptic number.

It is an amenable number.

131222130032 is an abundant number, since it is smaller than the sum of its proper divisors (160065854320).

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

131222130032 is a wasteful number, since it uses less digits than its factorization.

131222130032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922177 (or 2922171 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131222130032 its reverse (230031222131), we get a palindrome (361253352163).

The spelling of 131222130032 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirty thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 401 802 1604 2807 3208 5614 6416 11228 22456 44912 2921761 5843522 11687044 20452327 23374088 40904654 46748176 81809308 163618616 327237232 1171626161 2343252322 4686504644 8201383127 9373009288 16402766254 18746018576 32805532508 65611065016 131222130032