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38378027146 = 261314573993
BaseRepresentation
bin100011101111100000…
…100011100010001010
310200001122000210000211
4203233200203202022
51112044233332041
625344114151334
72526020563654
oct435740434212
9120048023024
1038378027146
1115304439908
12753088254a
133808025404
141c00dd76d4
15ee93e7481
hex8ef82388a

38378027146 has 8 divisors (see below), whose sum is σ = 58510762884. Its totient is φ = 18874439520.

The previous prime is 38378027141. The next prime is 38378027147. The reversal of 38378027146 is 64172087383.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38151855625 + 226171521 = 195325^2 + 15039^2 .

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

It is a super-2 number, since 2×383780271462 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38378027146.

It is not an unprimeable number, because it can be changed into a prime (38378027141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157286875 + ... + 157287118.

Almost surely, 238378027146 is an apocalyptic number.

38378027146 is a deficient number, since it is larger than the sum of its proper divisors (20132735738).

38378027146 is a wasteful number, since it uses less digits than its factorization.

38378027146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314574056.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 38378027146 in words is "thirty-eight billion, three hundred seventy-eight million, twenty-seven thousand, one hundred forty-six".

Divisors: 1 2 61 122 314573993 629147986 19189013573 38378027146