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388080201 = 3129360067
BaseRepresentation
bin10111001000011…
…010001001001001
31000001020111221210
4113020122021021
51243322031301
6102301523333
712421425105
oct2710321111
91001214853
10388080201
1118a074443
12a9b73549
1362529c72
1439780905
152410bad6
hex1721a249

388080201 has 4 divisors (see below), whose sum is σ = 517440272. Its totient is φ = 258720132.

The previous prime is 388080197. The next prime is 388080241. The reversal of 388080201 is 102080883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102080883 = 334026961.

It is not a de Polignac number, because 388080201 - 22 = 388080197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388080241) 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, 64680031 + ... + 64680036.

It is an arithmetic number, because the mean of its divisors is an integer number (129360068).

Almost surely, 2388080201 is an apocalyptic number.

It is an amenable number.

388080201 is a deficient number, since it is larger than the sum of its proper divisors (129360071).

388080201 is a wasteful number, since it uses less digits than its factorization.

388080201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129360070.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 388080201 is about 19699.7512928463. The cubic root of 388080201 is about 729.4135535235.

The spelling of 388080201 in words is "three hundred eighty-eight million, eighty thousand, two hundred one".

Divisors: 1 3 129360067 388080201