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388801242368 = 28721142973
BaseRepresentation
bin1011010100001100101…
…11000010010100000000
31101011120020010112112122
411222012113002110000
522332231104223433
6454340211543412
740042600013600
oct5520627022400
91334506115478
10388801242368
1113a987190000
12634288bab68
132a8824a3036
1414b64b54c00
15a1a8698198
hex5a865c2500

388801242368 has 540 divisors, whose sum is σ = 1041380543700. Its totient is φ = 144253992960.

The previous prime is 388801242233. The next prime is 388801242461. The reversal of 388801242368 is 863242108883.

It can be written as a sum of positive squares in 2 ways, for example, as 212307149824 + 176494092544 = 460768^2 + 420112^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5326044380 + ... + 5326044452.

Almost surely, 2388801242368 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 388801242368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520690271850).

388801242368 is an abundant number, since it is smaller than the sum of its proper divisors (652579301332).

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

388801242368 is an frugal number, since it uses more digits than its factorization.

388801242368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 388801242368 in words is "three hundred eighty-eight billion, eight hundred one million, two hundred forty-two thousand, three hundred sixty-eight".