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38486829820 = 2251924341491
BaseRepresentation
bin100011110101111111…
…100110101011111100
310200100012202112020111
4203311333212223330
51112310112023240
625403002155404
72531511440635
oct436577465374
9120305675214
1038486829820
111535a8a297a
1275611b2b64
13382472b7aa
141c1163a88c
151003c3a1ea
hex8f5fe6afc

38486829820 has 12 divisors (see below), whose sum is σ = 80822342664. Its totient is φ = 15394731920.

The previous prime is 38486829817. The next prime is 38486829833. The reversal of 38486829820 is 2892868483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962170726 + ... + 962170765.

It is an arithmetic number, because the mean of its divisors is an integer number (6735195222).

Almost surely, 238486829820 is an apocalyptic number.

It is an amenable number.

38486829820 is an abundant number, since it is smaller than the sum of its proper divisors (42335512844).

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

38486829820 is a wasteful number, since it uses less digits than its factorization.

38486829820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924341500 (or 1924341498 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 38486829820 in words is "thirty-eight billion, four hundred eighty-six million, eight hundred twenty-nine thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1924341491 3848682982 7697365964 9621707455 19243414910 38486829820