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38796387840 = 293257293821
BaseRepresentation
bin100100001000011100…
…011110011000000000
310201010210020201000100
4210020130132120000
51113423333402330
625453421122400
72542260566310
oct441034363000
9121123221010
1038796387840
11154a9605451
1276289b9400
1338738c4c12
141c407bb440
151020ed6060
hex90871e600

38796387840 has 480 divisors, whose sum is σ = 154269251136. Its totient is φ = 8826716160.

The previous prime is 38796387827. The next prime is 38796387853. The reversal of 38796387840 is 4878369783.

It is an interprime number because it is at equal distance from previous prime (38796387827) and next prime (38796387853).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47254630 + ... + 47255450.

Almost surely, 238796387840 is an apocalyptic number.

38796387840 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 38796387840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77134625568).

38796387840 is an abundant number, since it is smaller than the sum of its proper divisors (115472863296).

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

38796387840 is a wasteful number, since it uses less digits than its factorization.

38796387840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 38796387840 in words is "thirty-eight billion, seven hundred ninety-six million, three hundred eighty-seven thousand, eight hundred forty".