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2023020311 = 13677331817
BaseRepresentation
bin111100010010100…
…1101011100010111
312012222200002011012
41320211031130113
513120343122221
6532424202435
7101063250254
oct17045153427
95188602135
102023020311
11948a40114
1248560941b
13263177450
1415296c42b
15bc90d65b
hex7894d717

2023020311 has 16 divisors (see below), whose sum is σ = 2241514464. Its totient is φ = 1814275584.

The previous prime is 2023020299. The next prime is 2023020323. The reversal of 2023020311 is 1130203202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2023020299) and next prime (2023020323).

It is a cyclic number.

It is not a de Polignac number, because 2023020311 - 210 = 2023019287 is a prime.

It is a super-2 number, since 2×20230203112 = 8185222357437073442, 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 (2023020911) 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 15 ways as a sum of consecutive naturals, for example, 47675 + ... + 79491.

It is an arithmetic number, because the mean of its divisors is an integer number (140094654).

Almost surely, 22023020311 is an apocalyptic number.

2023020311 is a deficient number, since it is larger than the sum of its proper divisors (218494153).

2023020311 is a wasteful number, since it uses less digits than its factorization.

2023020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31970.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2023020311 is about 44977.9980768375. The cubic root of 2023020311 is about 1264.7365834366.

Adding to 2023020311 its reverse (1130203202), we get a palindrome (3153223513).

The spelling of 2023020311 in words is "two billion, twenty-three million, twenty thousand, three hundred eleven".

Divisors: 1 13 67 73 871 949 4891 31817 63583 413621 2131739 2322641 27712607 30194333 155616947 2023020311