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2103969231 = 327134359743
BaseRepresentation
bin111110101101000…
…0000010111001111
312102121222201012100
41331122000113033
513302104003411
6544435210143
7103065305040
oct17532002717
95377881170
102103969231
1198a6aa251
124a8746953
13276b7a710
1415d6008c7
15c4a9d456
hex7d6805cf

2103969231 has 48 divisors (see below), whose sum is σ = 3827439616. Its totient is φ = 1083958848.

The previous prime is 2103969223. The next prime is 2103969233. The reversal of 2103969231 is 1329693012.

It is a happy number.

It is not a de Polignac number, because 2103969231 - 23 = 2103969223 is a prime.

It is a super-2 number, since 2×21039692312 = 8853373049989462722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103969233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5346 + ... + 65088.

Almost surely, 22103969231 is an apocalyptic number.

2103969231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2103969231 is a deficient number, since it is larger than the sum of its proper divisors (1723470385).

2103969231 is a wasteful number, since it uses less digits than its factorization.

2103969231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59812 (or 59809 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2103969231 is about 45869.0443654541. The cubic root of 2103969231 is about 1281.3854690281.

The spelling of 2103969231 in words is "two billion, one hundred three million, nine hundred sixty-nine thousand, two hundred thirty-one".

Divisors: 1 3 7 9 13 21 39 43 63 91 117 129 273 301 387 559 819 903 1677 2709 3913 5031 11739 35217 59743 179229 418201 537687 776659 1254603 2329977 2568949 3763809 5436613 6989931 7706847 16309839 17982643 23120541 33396337 48929517 53947929 100189011 161843787 233774359 300567033 701323077 2103969231