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23029215400 = 2352115146077
BaseRepresentation
bin10101011100101001…
…011111000010101000
32012102221112100120201
4111130221133002220
5334130434343100
614325100001544
71443454046452
oct253451370250
965387470521
1023029215400
119848434424
1245685302b4
13223014ac99
1411867352d2
158ebb8136a
hex55ca5f0a8

23029215400 has 24 divisors (see below), whose sum is σ = 53542926270. Its totient is φ = 9211686080.

The previous prime is 23029215397. The next prime is 23029215401. The reversal of 23029215400 is 451292032.

It can be written as a sum of positive squares in 3 ways, for example, as 11026260036 + 12002955364 = 105006^2 + 109558^2 .

It is not an unprimeable number, because it can be changed into a prime (23029215401) 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 5 ways as a sum of consecutive naturals, for example, 57572839 + ... + 57573238.

Almost surely, 223029215400 is an apocalyptic number.

23029215400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23029215400 is an abundant number, since it is smaller than the sum of its proper divisors (30513710870).

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

23029215400 is a wasteful number, since it uses less digits than its factorization.

23029215400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115146093 (or 115146084 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 23029215400 in words is "twenty-three billion, twenty-nine million, two hundred fifteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 115146077 230292154 460584308 575730385 921168616 1151460770 2302921540 2878651925 4605843080 5757303850 11514607700 23029215400