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23240480 = 255145253
BaseRepresentation
bin101100010100…
…1111100100000
31121201201221112
41120221330200
521422143410
62150042452
7401353334
oct130517440
947651845
1023240480
1112133a0a
127949428
134a79383
14312d7c4
152091105
hex1629f20

23240480 has 24 divisors (see below), whose sum is σ = 54906012. Its totient is φ = 9296128.

The previous prime is 23240473. The next prime is 23240519. The reversal of 23240480 is 8404232.

It can be written as a sum of positive squares in 2 ways, for example, as 22619536 + 620944 = 4756^2 + 788^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72467 + ... + 72786.

Almost surely, 223240480 is an apocalyptic number.

23240480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23240480 is an abundant number, since it is smaller than the sum of its proper divisors (31665532).

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

23240480 is a wasteful number, since it uses less digits than its factorization.

23240480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145268 (or 145260 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 23240480 is about 4820.8381014093. The cubic root of 23240480 is about 285.3744130061.

The spelling of 23240480 in words is "twenty-three million, two hundred forty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 145253 290506 581012 726265 1162024 1452530 2324048 2905060 4648096 5810120 11620240 23240480