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38740543380 = 22335711284701
BaseRepresentation
bin100100000101000111…
…011100011110010100
310200222220011111211000
4210011013130132110
51113320034342010
625444104143300
72541012120420
oct440507343624
9120886144730
1038740543380
1115480032700
127612167b30
133865171566
141c37201b80
15101b1547c0
hex9051dc794

38740543380 has 288 divisors, whose sum is σ = 151406519040. Its totient is φ = 8049888000.

The previous prime is 38740543379. The next prime is 38740543399. The reversal of 38740543380 is 8334504783.

38740543380 is a `hidden beast` number, since 3 + 8 + 74 + 0 + 543 + 38 + 0 = 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 95 ways as a sum of consecutive naturals, for example, 415030 + ... + 499730.

It is an arithmetic number, because the mean of its divisors is an integer number (525717080).

Almost surely, 238740543380 is an apocalyptic number.

38740543380 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 38740543380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75703259520).

38740543380 is an abundant number, since it is smaller than the sum of its proper divisors (112665975660).

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

38740543380 is a wasteful number, since it uses less digits than its factorization.

38740543380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84748 (or 84729 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 38740543380 in words is "thirty-eight billion, seven hundred forty million, five hundred forty-three thousand, three hundred eighty".