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38401375647660 = 223543149233428731
BaseRepresentation
bin10001011101101000001000…
…10110101011011110101100
312000222010122220011200011120
420232310010112223132230
520013132004131211120
6213401203132220540
711042256613205154
oct1056640426533654
9160863586150146
1038401375647660
1111265a28482083
12438253b00a750
131857307674a2c
1496a8ca7a1764
15468d942bc140
hex22ed045ab7ac

38401375647660 has 192 divisors, whose sum is σ = 111238461734400. Its totient is φ = 9892426844160.

The previous prime is 38401375647629. The next prime is 38401375647667. The reversal of 38401375647660 is 6674657310483.

38401375647660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 38401375647594 and 38401375647603.

It is not an unprimeable number, because it can be changed into a prime (38401375647667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89355495 + ... + 89784225.

It is an arithmetic number, because the mean of its divisors is an integer number (579366988200).

Almost surely, 238401375647660 is an apocalyptic number.

38401375647660 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 38401375647660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55619230867200).

38401375647660 is an abundant number, since it is smaller than the sum of its proper divisors (72837086086740).

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

38401375647660 is a wasteful number, since it uses less digits than its factorization.

38401375647660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429168 (or 429166 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 38401375647660 in words is "thirty-eight trillion, four hundred one billion, three hundred seventy-five million, six hundred forty-seven thousand, six hundred sixty".