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13451250544 = 2417376121911
BaseRepresentation
bin11001000011100000…
…11100101101110000
31021201102220022211121
430201300130231300
5210022010004134
610102430552024
7654222512614
oct144160345560
937642808747
1013451250544
115782975696
122734968614
131364a18964
14918671344
1553ad8aab4
hex321c1cb70

13451250544 has 80 divisors (see below), whose sum is σ = 28806566976. Its totient is φ = 6057676800.

The previous prime is 13451250541. The next prime is 13451250557. The reversal of 13451250544 is 44505215431.

It is a super-2 number, since 2×134512505442 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13451250541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602949 + ... + 624859.

Almost surely, 213451250544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13451250544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14403283488).

13451250544 is an abundant number, since it is smaller than the sum of its proper divisors (15355316432).

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

13451250544 is a wasteful number, since it uses less digits than its factorization.

13451250544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22034 (or 22028 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 13451250544 its reverse (44505215431), we get a palindrome (57956465975).

The spelling of 13451250544 in words is "thirteen billion, four hundred fifty-one million, two hundred fifty thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 17 34 37 61 68 74 122 136 148 244 272 296 488 592 629 976 1037 1258 2074 2257 2516 4148 4514 5032 8296 9028 10064 16592 18056 21911 36112 38369 43822 76738 87644 153476 175288 306952 350576 372487 613904 744974 810707 1336571 1489948 1621414 2673142 2979896 3242828 5346284 5959792 6485656 10692568 12971312 13782019 21385136 22721707 27564038 45443414 49453127 55128076 90886828 98906254 110256152 181773656 197812508 220512304 363547312 395625016 791250032 840703159 1681406318 3362812636 6725625272 13451250544