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387901053 = 321712719963
BaseRepresentation
bin10111000111101…
…110011001111101
31000000220102012200
4113013232121331
51243300313203
6102254022113
712420050601
oct2707563175
91000812180
10387901053
11189a61891
12a9aa7939
1362496567
1439735501
15240c39a3
hex171ee67d

387901053 has 24 divisors (see below), whose sum is σ = 597961728. Its totient is φ = 241460352.

The previous prime is 387901051. The next prime is 387901061. The reversal of 387901053 is 350109783.

It is not a de Polignac number, because 387901053 - 21 = 387901051 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 387900999 and 387901017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387901051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9450 + ... + 29412.

It is an arithmetic number, because the mean of its divisors is an integer number (24915072).

Almost surely, 2387901053 is an apocalyptic number.

It is an amenable number.

387901053 is a deficient number, since it is larger than the sum of its proper divisors (210060675).

387901053 is a wasteful number, since it uses less digits than its factorization.

387901053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20113 (or 20110 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 387901053 is about 19695.2038070186. The cubic root of 387901053 is about 729.3012974388.

The spelling of 387901053 in words is "three hundred eighty-seven million, nine hundred one thousand, fifty-three".

Divisors: 1 3 9 17 51 127 153 381 1143 2159 6477 19431 19963 59889 179667 339371 1018113 2535301 3054339 7605903 22817709 43100117 129300351 387901053