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389198103 = 37113164011
BaseRepresentation
bin10111001100101…
…011000100010111
31000010100022102120
4113030223010113
51244113314403
6102341511023
712434062230
oct2714530427
91003308376
10389198103
1118a768328
12aa412473
136282ba48
1439992087
152427ce53
hex1732b117

389198103 has 16 divisors (see below), whose sum is σ = 598315776. Its totient is φ = 220429440.

The previous prime is 389198101. The next prime is 389198123. The reversal of 389198103 is 301891983.

It is a happy number.

It is not a de Polignac number, because 389198103 - 21 = 389198101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389198101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79633 + ... + 84378.

It is an arithmetic number, because the mean of its divisors is an integer number (37394736).

Almost surely, 2389198103 is an apocalyptic number.

389198103 is a deficient number, since it is larger than the sum of its proper divisors (209117673).

389198103 is a wasteful number, since it uses less digits than its factorization.

389198103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164134.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 389198103 is about 19728.1043944926. The cubic root of 389198103 is about 730.1132638417.

The spelling of 389198103 in words is "three hundred eighty-nine million, one hundred ninety-eight thousand, one hundred three".

Divisors: 1 3 7 21 113 339 791 2373 164011 492033 1148077 3444231 18533243 55599729 129732701 389198103