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38385458388 = 2234118473637
BaseRepresentation
bin100011101111111100…
…111001110011010100
310200002011000022210000
4203233330321303110
51112103134132023
625344541331300
72526141004254
oct435774716324
9120064008700
1038385458388
1115308655032
127533266b30
1338097279b4
141c01dad964
15ee9db4243
hex8eff39cd4

38385458388 has 30 divisors (see below), whose sum is σ = 100347171386. Its totient is φ = 12795152688.

The previous prime is 38385458347. The next prime is 38385458411. The reversal of 38385458388 is 88385458383.

38385458388 is a `hidden beast` number, since 3 + 8 + 3 + 8 + 545 + 8 + 3 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37018529604 + 1366928784 = 192402^2 + 36972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 59236495 + ... + 59237142.

Almost surely, 238385458388 is an apocalyptic number.

It is an amenable number.

38385458388 is an abundant number, since it is smaller than the sum of its proper divisors (61961712998).

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

38385458388 is a wasteful number, since it uses less digits than its factorization.

38385458388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118473653 (or 118473642 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 63.

The spelling of 38385458388 in words is "thirty-eight billion, three hundred eighty-five million, four hundred fifty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 118473637 236947274 355420911 473894548 710841822 1066262733 1421683644 2132525466 3198788199 4265050932 6397576398 9596364597 12795152796 19192729194 38385458388