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13320123103220 = 2251091610454771
BaseRepresentation
bin1100000111010101010100…
…1101001011011111110100
31202011101120021121010010212
43001311111031023133310
53221214103003300340
644155102521404552
72543230032155333
oct301652515133764
952141507533125
1013320123103220
11427603a26730a
1215b1642339758
1375810b83419b
143409a9935d1a
151817487cba65
hexc1d5534b7f4

13320123103220 has 24 divisors (see below), whose sum is σ = 27997897663008. Its totient is φ = 5323165594400.

The previous prime is 13320123103219. The next prime is 13320123103253. The reversal of 13320123103220 is 2230132102331.

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, 305205566 + ... + 305249205.

It is an arithmetic number, because the mean of its divisors is an integer number (1166579069292).

Almost surely, 213320123103220 is an apocalyptic number.

13320123103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320123103220 is an abundant number, since it is smaller than the sum of its proper divisors (14677774559788).

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

13320123103220 is a wasteful number, since it uses less digits than its factorization.

13320123103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610455871 (or 610455869 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13320123103220 its reverse (2230132102331), we get a palindrome (15550255205551).

The spelling of 13320123103220 in words is "thirteen trillion, three hundred twenty billion, one hundred twenty-three million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1091 2182 4364 5455 10910 21820 610454771 1220909542 2441819084 3052273855 6104547710 12209095420 666006155161 1332012310322 2664024620644 3330030775805 6660061551610 13320123103220