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2023212031 = 11291792039
BaseRepresentation
bin111100010010111…
…1100001111111111
312020000000211010221
41320211330033333
513120420241111
6532432242211
7101065006231
oct17045741777
95200024127
102023212031
11949061165
124856a0367
132632137a9
141529bc251
15bc94a371
hex7897c3ff

2023212031 has 4 divisors (see below), whose sum is σ = 2025005200. Its totient is φ = 2021418864.

The previous prime is 2023212029. The next prime is 2023212091. The reversal of 2023212031 is 1302123202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2023212031 - 21 = 2023212029 is a prime.

It is a super-2 number, since 2×20232120312 = 8186773844766289922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2023211996 and 2023212014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023212091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894891 + ... + 897148.

It is an arithmetic number, because the mean of its divisors is an integer number (506251300).

Almost surely, 22023212031 is an apocalyptic number.

2023212031 is a deficient number, since it is larger than the sum of its proper divisors (1793169).

2023212031 is a wasteful number, since it uses less digits than its factorization.

2023212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793168.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2023212031 is about 44980.1292906101. The cubic root of 2023212031 is about 1264.7765348626.

Adding to 2023212031 its reverse (1302123202), we get a palindrome (3325335233).

The spelling of 2023212031 in words is "two billion, twenty-three million, two hundred twelve thousand, thirty-one".

Divisors: 1 1129 1792039 2023212031