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13100031223400 = 23521129457449299
BaseRepresentation
bin1011111010100001011010…
…1101010010011001101000
31201101100110200220011222102
42332220112231102121220
53204112330443122100
643510023220512532
72521305662102252
oct276502655223150
951340420804872
1013100031223400
1141a0768121460
121576a59b4b748
13740434aaa934
1433408b292cd2
1517ab664dccd5
hexbea16b52668

13100031223400 has 192 divisors, whose sum is σ = 34447471560000. Its totient is φ = 4589309491200.

The previous prime is 13100031223333. The next prime is 13100031223423. The reversal of 13100031223400 is 432213000131.

13100031223400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131000312234002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28931951 + ... + 29381249.

It is an arithmetic number, because the mean of its divisors is an integer number (179413914375).

Almost surely, 213100031223400 is an apocalyptic number.

13100031223400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13100031223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17223735780000).

13100031223400 is an abundant number, since it is smaller than the sum of its proper divisors (21347440336600).

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

13100031223400 is a wasteful number, since it uses less digits than its factorization.

13100031223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449812 (or 449803 counting only the distinct ones).

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

Adding to 13100031223400 its reverse (432213000131), we get a palindrome (13532244223531).

The spelling of 13100031223400 in words is "thirteen trillion, one hundred billion, thirty-one million, two hundred twenty-three thousand, four hundred".