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38997980928000 = 211335319215629
BaseRepresentation
bin10001101110111111011001…
…10011001101100000000000
312010002011121100021002202000
420313133230303031200000
520102420331104144000
6214535231454024000
711133340215340263
oct1067375463154000
9163064540232660
1038997980928000
1111475a50616536
12445a0a0aa8000
13189b655c07983
1498b725c50cda
154796610c7000
hex2377ecccd800

38997980928000 has 1152 divisors, whose sum is σ = 152167690584000. Its totient is φ = 9851491123200.

The previous prime is 38997980927897. The next prime is 38997980928043. The reversal of 38997980928000 is 82908979983.

38997980928000 is a `hidden beast` number, since 389 + 9 + 7 + 9 + 80 + 92 + 80 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 38997980928000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2495224186 + ... + 2495239814.

Almost surely, 238997980928000 is an apocalyptic number.

38997980928000 is a gapful number since it is divisible by the number (30) 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 38997980928000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76083845292000).

38997980928000 is an abundant number, since it is smaller than the sum of its proper divisors (113169709656000).

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

38997980928000 is a wasteful number, since it uses less digits than its factorization.

38997980928000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713 (or 15658 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 38997980928000 in words is "thirty-eight trillion, nine hundred ninety-seven billion, nine hundred eighty million, nine hundred twenty-eight thousand".