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232011031 = 74711361
BaseRepresentation
bin11011101010000…
…11010100010111
3121011120101022011
431311003110113
5433343323111
635004445051
75515030000
oct1565032427
9534511264
10232011031
11109a6735a
1265849787
13390b4745
1422b561a7
151557e021
hexdd43517

232011031 has 20 divisors (see below), whose sum is σ = 274677264. Its totient is φ = 195921600.

The previous prime is 232011023. The next prime is 232011077. The reversal of 232011031 is 130110232.

It is not a de Polignac number, because 232011031 - 23 = 232011023 is a prime.

It is a super-2 number, since 2×2320110312 = 107658237011365922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232011001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 169791 + ... + 171151.

Almost surely, 2232011031 is an apocalyptic number.

232011031 is a deficient number, since it is larger than the sum of its proper divisors (42666233).

232011031 is an frugal number, since it uses more digits than its factorization.

232011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 232011031 is about 15231.9083177388. The cubic root of 232011031 is about 614.4731036975.

Adding to 232011031 its reverse (130110232), we get a palindrome (362121263).

The spelling of 232011031 in words is "two hundred thirty-two million, eleven thousand, thirty-one".

Divisors: 1 7 49 71 343 497 1361 2401 3479 9527 24353 66689 96631 170471 466823 676417 3267761 4734919 33144433 232011031