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38138810074 = 2184131035649
BaseRepresentation
bin100011100001010000…
…000000111011011010
310122102221220021220021
4203201100000323122
51111102013410244
625304251021054
72520054352051
oct434120007332
9118387807807
1038138810074
11151a1400552
12748473a78a
13379a5b9a51
141bbb327398
15ed33e3284
hex8e1400eda

38138810074 has 8 divisors (see below), whose sum is σ = 57211377300. Its totient is φ = 19068350976.

The previous prime is 38138810063. The next prime is 38138810113. The reversal of 38138810074 is 47001883183.

It can be written as a sum of positive squares in 2 ways, for example, as 32730237225 + 5408572849 = 180915^2 + 73543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 38138810074.

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, 480999 + ... + 554650.

Almost surely, 238138810074 is an apocalyptic number.

38138810074 is a deficient number, since it is larger than the sum of its proper divisors (19072567226).

38138810074 is a wasteful number, since it uses less digits than its factorization.

38138810074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054064.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 38138810074 in words is "thirty-eight billion, one hundred thirty-eight million, eight hundred ten thousand, seventy-four".

Divisors: 1 2 18413 36826 1035649 2071298 19069405037 38138810074