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130221013312 = 26131071462763
BaseRepresentation
bin111100101000111000…
…1101111100101000000
3110110010022210212220001
41321101301233211000
54113143034411222
6135453412125344
712256666231015
oct1712161574500
9413108725801
10130221013312
1150254404765
12212a2906854
13c383908540
14643499b70c
1535c246de27
hex1e51c6f940

130221013312 has 56 divisors (see below), whose sum is σ = 280885794336. Its totient is φ = 59540264448.

The previous prime is 130221013289. The next prime is 130221013333. The reversal of 130221013312 is 213310122031.

It is a self number, because there is not a number n which added to its sum of digits gives 130221013312.

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, 642358 + ... + 820405.

It is an arithmetic number, because the mean of its divisors is an integer number (5015817756).

Almost surely, 2130221013312 is an apocalyptic number.

It is an amenable number.

130221013312 is an abundant number, since it is smaller than the sum of its proper divisors (150664781024).

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

130221013312 is a wasteful number, since it uses less digits than its factorization.

130221013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462895 (or 1462885 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130221013312 its reverse (213310122031), we get a palindrome (343531135343).

The spelling of 130221013312 in words is "one hundred thirty billion, two hundred twenty-one million, thirteen thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 107 208 214 416 428 832 856 1391 1712 2782 3424 5564 6848 11128 22256 44512 89024 1462763 2925526 5851052 11702104 19015919 23404208 38031838 46808416 76063676 93616832 152127352 156515641 304254704 313031282 608509408 626062564 1217018816 1252125128 2034703333 2504250256 4069406666 5008500512 8138813332 10017001024 16277626664 32555253328 65110506656 130221013312