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38690842884 = 22329331335893
BaseRepresentation
bin100100000010001001…
…110110100100000100
310200212102122110112220
4210002021312210010
51113214323433014
625435131012340
72536536511131
oct440211664404
9120772573486
1038690842884
1115454a76a11
1275b959a0b0
133857a8c595
141c30785588
151016ad86a9
hex902276904

38690842884 has 48 divisors (see below), whose sum is σ = 93674118720. Its totient is φ = 12414568320.

The previous prime is 38690842867. The next prime is 38690842919. The reversal of 38690842884 is 48824809683.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52759 + ... + 283134.

It is an arithmetic number, because the mean of its divisors is an integer number (1951544140).

Almost surely, 238690842884 is an apocalyptic number.

It is an amenable number.

38690842884 is an abundant number, since it is smaller than the sum of its proper divisors (54983275836).

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

38690842884 is a wasteful number, since it uses less digits than its factorization.

38690842884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336260 (or 336258 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 60.

The spelling of 38690842884 in words is "thirty-eight billion, six hundred ninety million, eight hundred forty-two thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 331 348 662 993 1324 1986 3972 9599 19198 28797 38396 57594 115188 335893 671786 1007679 1343572 2015358 4030716 9740897 19481794 29222691 38963588 58445382 111180583 116890764 222361166 333541749 444722332 667083498 1334166996 3224236907 6448473814 9672710721 12896947628 19345421442 38690842884