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387874201 = 111331591483
BaseRepresentation
bin10111000111100…
…111110110011001
31000000212001101011
4113013213312121
51243243433301
6102253253521
712416606401
oct2707476631
91000761334
10387874201
11189a436a0
12a9a942a1
1362487280
1439729801
15240baa51
hex171e7d99

387874201 has 32 divisors (see below), whose sum is σ = 478679040. Its totient is φ = 309441600.

The previous prime is 387874199. The next prime is 387874243. The reversal of 387874201 is 102478783.

It is not a de Polignac number, because 387874201 - 21 = 387874199 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387874271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260806 + ... + 262288.

It is an arithmetic number, because the mean of its divisors is an integer number (14958720).

Almost surely, 2387874201 is an apocalyptic number.

387874201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

387874201 is a deficient number, since it is larger than the sum of its proper divisors (90804839).

387874201 is a wasteful number, since it uses less digits than its factorization.

387874201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 387874201 is about 19694.5221064132. The cubic root of 387874201 is about 729.2844687053.

The spelling of 387874201 in words is "three hundred eighty-seven million, eight hundred seventy-four thousand, two hundred one".

Divisors: 1 11 13 31 59 143 341 403 649 767 1483 1829 4433 8437 16313 19279 20119 23777 45973 87497 212069 261547 505703 597649 962467 1137461 2712407 6574139 12512071 29836477 35261291 387874201