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1232223031 = 13373254119
BaseRepresentation
bin100100101110010…
…0011101100110111
310011212122102020001
41021130203230313
510010422114111
6322134452131
742351502654
oct11134435467
93155572201
101232223031
11582615446
122a4804047
13168397270
14b991ac2b
15732a31c1
hex49723b37

1232223031 has 8 divisors (see below), whose sum is σ = 1330572320. Its totient is φ = 1134382752.

The previous prime is 1232223001. The next prime is 1232223037. The reversal of 1232223031 is 1303222321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1232223031 is a prime.

It is a super-2 number, since 2×12322230312 = 3036747196253653922, 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 (1232223037) 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 7 ways as a sum of consecutive naturals, for example, 122211 + ... + 131908.

It is an arithmetic number, because the mean of its divisors is an integer number (166321540).

Almost surely, 21232223031 is an apocalyptic number.

1232223031 is a deficient number, since it is larger than the sum of its proper divisors (98349289).

1232223031 is a wasteful number, since it uses less digits than its factorization.

1232223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254505.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1232223031 is about 35103.0344984590. The cubic root of 1232223031 is about 1072.0863682432.

Adding to 1232223031 its reverse (1303222321), we get a palindrome (2535445352).

It can be divided in two parts, 123222 and 3031, that added together give a triangular number (126253 = T502).

The spelling of 1232223031 in words is "one billion, two hundred thirty-two million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 13 373 4849 254119 3303547 94786387 1232223031