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38770818038 = 219385409019
BaseRepresentation
bin100100000110111010…
…111011101111110110
310201002000010121211122
4210012322323233312
51113400312134123
625451105103542
72541530341631
oct440672735766
9121060117748
1038770818038
1115496130487
127620327bb2
13386b511564
141c3b242c18
15101db34bc8
hex906ebbbf6

38770818038 has 4 divisors (see below), whose sum is σ = 58156227060. Its totient is φ = 19385409018.

The previous prime is 38770818013. The next prime is 38770818139. The reversal of 38770818038 is 83081807783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83081807783 = 136390908291.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9692704508 + ... + 9692704511.

It is an arithmetic number, because the mean of its divisors is an integer number (14539056765).

Almost surely, 238770818038 is an apocalyptic number.

38770818038 is a deficient number, since it is larger than the sum of its proper divisors (19385409022).

38770818038 is a wasteful number, since it uses less digits than its factorization.

38770818038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385409021.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 38770818038 in words is "thirty-eight billion, seven hundred seventy million, eight hundred eighteen thousand, thirty-eight".

Divisors: 1 2 19385409019 38770818038