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38345454384 = 2433721590909
BaseRepresentation
bin100011101101100100…
…010011001100110000
310122222100201220121020
4203231210103030300
51112012414020014
625340552055440
72525143661436
oct435544231460
9118870656536
1038345454384
1115298011476
127521994580
13380135c3a3
141bda958d56
15ee66111a9
hex8ed913330

38345454384 has 40 divisors (see below), whose sum is σ = 101736367920. Its totient is φ = 12436363008.

The previous prime is 38345454349. The next prime is 38345454397. The reversal of 38345454384 is 48345454383.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10793679 + ... + 10797230.

It is an arithmetic number, because the mean of its divisors is an integer number (2543409198).

Almost surely, 238345454384 is an apocalyptic number.

It is an amenable number.

38345454384 is an abundant number, since it is smaller than the sum of its proper divisors (63390913536).

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

38345454384 is a wasteful number, since it uses less digits than its factorization.

38345454384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21590957 (or 21590951 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 51.

Subtracting 38345454384 from its reverse (48345454383), we obtain a palindrome (9999999999).

The spelling of 38345454384 in words is "thirty-eight billion, three hundred forty-five million, four hundred fifty-four thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 37 48 74 111 148 222 296 444 592 888 1776 21590909 43181818 64772727 86363636 129545454 172727272 259090908 345454544 518181816 798863633 1036363632 1597727266 2396590899 3195454532 4793181798 6390909064 9586363596 12781818128 19172727192 38345454384