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13273247990744 = 237323319769941
BaseRepresentation
bin1100000100100110101100…
…1110110100001111011000
31201222220120110210200022222
43001021223032310033120
53214432102441200434
644121351305203212
72536650313244000
oct301115316641730
951886513720288
1013273247990744
114258175504535
1215a453ba90508
1375387b2c4441
1433c60023b000
1518040344972e
hexc126b3b43d8

13273247990744 has 256 divisors, whose sum is σ = 31584688128000. Its totient is φ = 5211324518400.

The previous prime is 13273247990731. The next prime is 13273247990803. The reversal of 13273247990744 is 44709974237231.

It is a super-2 number, since 2×132732479907442 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189742814 + ... + 189812754.

It is an arithmetic number, because the mean of its divisors is an integer number (123377688000).

Almost surely, 213273247990744 is an apocalyptic number.

13273247990744 is a gapful number since it is divisible by the number (14) 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 13273247990744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15792344064000).

13273247990744 is an abundant number, since it is smaller than the sum of its proper divisors (18311440137256).

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

13273247990744 is a wasteful number, since it uses less digits than its factorization.

13273247990744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70119 (or 70101 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 62.

The spelling of 13273247990744 in words is "thirteen trillion, two hundred seventy-three billion, two hundred forty-seven million, nine hundred ninety thousand, seven hundred forty-four".