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23023303400 = 2352115116517
BaseRepresentation
bin10101011100010010…
…111011101011101000
32012102112101222211202
4111130102323223220
5334122431202100
614324325143332
71443352564346
oct253422735350
965375358752
1023023303400
119845066679
12456655ab48
13222bb5b066
141185a36996
158eb3b47d5
hex55c4bbae8

23023303400 has 24 divisors (see below), whose sum is σ = 53529180870. Its totient is φ = 9209321280.

The previous prime is 23023303397. The next prime is 23023303441. The reversal of 23023303400 is 430332032.

It can be written as a sum of positive squares in 3 ways, for example, as 19978691716 + 3044611684 = 141346^2 + 55178^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57558059 + ... + 57558458.

Almost surely, 223023303400 is an apocalyptic number.

23023303400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023303400 is an abundant number, since it is smaller than the sum of its proper divisors (30505877470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23023303400 is a wasteful number, since it uses less digits than its factorization.

23023303400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115116533 (or 115116524 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 23023303400 its reverse (430332032), we get a palindrome (23453635432).

The spelling of 23023303400 in words is "twenty-three billion, twenty-three million, three hundred three thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 115116517 230233034 460466068 575582585 920932136 1151165170 2302330340 2877912925 4604660680 5755825850 11511651700 23023303400