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12380302297440 = 25355721117193159
BaseRepresentation
bin1011010000101000001110…
…0001010100100101100000
31121211112201112221111200000
42310022003201110211200
53110314324342004230
642155233220100000
72415306301135200
oct264120341244540
947745645844600
1012380302297440
113a43502990780
12147b476234600
136ba5c4176a0c
1430b2d1aaa400
151670903b2b60
hexb4283854960

12380302297440 has 6912 divisors, whose sum is σ = 65050855833600. Its totient is φ = 2182157107200.

The previous prime is 12380302297439. The next prime is 12380302297481. The reversal of 12380302297440 is 4479220308321.

12380302297440 is a `hidden beast` number, since 1 + 2 + 380 + 3 + 0 + 229 + 7 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 1151 ways as a sum of consecutive naturals, for example, 209835632131 + ... + 209835632189.

It is an arithmetic number, because the mean of its divisors is an integer number (9411292800).

Almost surely, 212380302297440 is an apocalyptic number.

12380302297440 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 12380302297440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32525427916800).

12380302297440 is an abundant number, since it is smaller than the sum of its proper divisors (52670553536160).

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

12380302297440 is a wasteful number, since it uses less digits than its factorization.

12380302297440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 12380302297440 in words is "twelve trillion, three hundred eighty billion, three hundred two million, two hundred ninety-seven thousand, four hundred forty".