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23200304420 = 2258313976087
BaseRepresentation
bin10101100110110110…
…001000110100100100
32012212212110120121002
4111212312020310210
5340003234220140
614354051012432
71450632222326
oct254666106444
965785416532
1023200304420
119925a70107
1245b589a118
132259721ba7
1411a134d616
1590bbc9415
hex566d88d24

23200304420 has 24 divisors (see below), whose sum is σ = 49307638464. Its totient is φ = 9168312416.

The previous prime is 23200304329. The next prime is 23200304437. The reversal of 23200304420 is 2440300232.

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

It is a junction number, because it is equal to n+sod(n) for n = 23200304392 and 23200304401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6986384 + ... + 6989703.

It is an arithmetic number, because the mean of its divisors is an integer number (2054484936).

Almost surely, 223200304420 is an apocalyptic number.

23200304420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23200304420 is an abundant number, since it is smaller than the sum of its proper divisors (26107334044).

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

23200304420 is a wasteful number, since it uses less digits than its factorization.

23200304420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13976179 (or 13976177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23200304420 its reverse (2440300232), we get a palindrome (25640604652).

The spelling of 23200304420 in words is "twenty-three billion, two hundred million, three hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 13976087 27952174 55904348 69880435 139760870 279521740 1160015221 2320030442 4640060884 5800076105 11600152210 23200304420