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38740435881 = 379649191189
BaseRepresentation
bin100100000101000111…
…000010001110101001
310200222212222001100120
4210011013002032221
51113320022422011
625444101553453
72541011162130
oct440507021651
9120885861316
1038740435881
111547aa69964
127612115889
133865134654
141c371b4917
15101b132a06
hex9051c23a9

38740435881 has 16 divisors (see below), whose sum is σ = 59039472000. Its totient is φ = 22134981888.

The previous prime is 38740435841. The next prime is 38740435891. The reversal of 38740435881 is 18853404783.

It is not a de Polignac number, because 38740435881 - 213 = 38740427689 is a prime.

It is a super-2 number, since 2×387404358812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38740435841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107035 + ... + 298223.

It is an arithmetic number, because the mean of its divisors is an integer number (3689967000).

Almost surely, 238740435881 is an apocalyptic number.

It is an amenable number.

38740435881 is a deficient number, since it is larger than the sum of its proper divisors (20299036119).

38740435881 is a wasteful number, since it uses less digits than its factorization.

38740435881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200848.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 38740435881 in words is "thirty-eight billion, seven hundred forty million, four hundred thirty-five thousand, eight hundred eighty-one".

Divisors: 1 3 7 21 9649 28947 67543 191189 202629 573567 1338323 4014969 1844782661 5534347983 12913478627 38740435881