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387842103 = 321137113937
BaseRepresentation
bin10111000111100…
…000000000110111
31000000210102100100
4113013200000313
51243241421403
6102252445143
712416413665
oct2707400067
91000712310
10387842103
11189a21570
12a9a797b3
136247578c
143971bc35
15240b12a3
hex171e0037

387842103 has 48 divisors (see below), whose sum is σ = 633892896. Its totient is φ = 226437120.

The previous prime is 387842093. The next prime is 387842107. The reversal of 387842103 is 301248783.

It is not a de Polignac number, because 387842103 - 210 = 387841079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387842107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413451 + ... + 414387.

It is an arithmetic number, because the mean of its divisors is an integer number (13206102).

Almost surely, 2387842103 is an apocalyptic number.

387842103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

387842103 is a deficient number, since it is larger than the sum of its proper divisors (246050793).

387842103 is a wasteful number, since it uses less digits than its factorization.

387842103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 387842103 is about 19693.7071929081. The cubic root of 387842103 is about 729.2643511701.

The spelling of 387842103 in words is "three hundred eighty-seven million, eight hundred forty-two thousand, one hundred three".

Divisors: 1 3 9 11 33 37 99 111 113 333 339 407 937 1017 1221 1243 2811 3663 3729 4181 8433 10307 11187 12543 30921 34669 37629 45991 92763 104007 105881 137973 312021 317643 381359 413919 952929 1144077 1164691 3432231 3494073 3917597 10482219 11752791 35258373 43093567 129280701 387842103