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13001223400 = 2352115909647
BaseRepresentation
bin11000001101110111…
…01110110011101000
31020120002002120122121
430012323232303220
5203111303122100
65550033201024
7640116401254
oct140673566350
936502076577
1013001223400
115571940630
12262a100174
1312c270c7c9
148b49a7264
155115e451a
hex306eeece8

13001223400 has 48 divisors (see below), whose sum is σ = 32975835840. Its totient is φ = 4727716800.

The previous prime is 13001223383. The next prime is 13001223439. The reversal of 13001223400 is 432210031.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2952624 + ... + 2957023.

It is an arithmetic number, because the mean of its divisors is an integer number (686996580).

Almost surely, 213001223400 is an apocalyptic number.

13001223400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13001223400 is an abundant number, since it is smaller than the sum of its proper divisors (19974612440).

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

13001223400 is a wasteful number, since it uses less digits than its factorization.

13001223400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909674 (or 5909665 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13001223400 its reverse (432210031), we get a palindrome (13433433431).

The spelling of 13001223400 in words is "thirteen billion, one million, two hundred twenty-three thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 5909647 11819294 23638588 29548235 47277176 59096470 65006117 118192940 130012234 147741175 236385880 260024468 295482350 325030585 520048936 590964700 650061170 1181929400 1300122340 1625152925 2600244680 3250305850 6500611700 13001223400