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23051330 = 252305133
BaseRepresentation
bin101011111101…
…1110001000010
31121101010110222
41113323301002
521400120310
62142023042
7366635021
oct127736102
947333428
1023051330
1112014895
127877a82
134a11253
1430c08b8
152055055
hex15fbc42

23051330 has 8 divisors (see below), whose sum is σ = 41492412. Its totient is φ = 9220528.

The previous prime is 23051309. The next prime is 23051339. The reversal of 23051330 is 3315032.

It can be written as a sum of positive squares in 2 ways, for example, as 21279769 + 1771561 = 4613^2 + 1331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23051299 and 23051308.

It is not an unprimeable number, because it can be changed into a prime (23051339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152557 + ... + 1152576.

Almost surely, 223051330 is an apocalyptic number.

23051330 is a deficient number, since it is larger than the sum of its proper divisors (18441082).

23051330 is a wasteful number, since it uses less digits than its factorization.

23051330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305140.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 23051330 is about 4801.1800632761. The cubic root of 23051330 is about 284.5980997725.

Adding to 23051330 its reverse (3315032), we get a palindrome (26366362).

The spelling of 23051330 in words is "twenty-three million, fifty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 2305133 4610266 11525665 23051330