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23311023530 = 252331102353
BaseRepresentation
bin10101101101011100…
…011111110110101010
32020011120210200122212
4111231130133312222
5340220110223110
614413044045122
71453445300504
oct255534376652
966146720585
1023311023530
119982513003
1246269937a2
132276649662
1411b1d30d74
15916799e05
hex56d71fdaa

23311023530 has 8 divisors (see below), whose sum is σ = 41959842372. Its totient is φ = 9324409408.

The previous prime is 23311023521. The next prime is 23311023539. The reversal of 23311023530 is 3532011332.

It is an interprime number because it is at equal distance from previous prime (23311023521) and next prime (23311023539).

It can be written as a sum of positive squares in 2 ways, for example, as 22138166521 + 1172857009 = 148789^2 + 34247^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23311023496 and 23311023505.

It is not an unprimeable number, because it can be changed into a prime (23311023539) 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, 1165551167 + ... + 1165551186.

Almost surely, 223311023530 is an apocalyptic number.

23311023530 is a deficient number, since it is larger than the sum of its proper divisors (18648818842).

23311023530 is a wasteful number, since it uses less digits than its factorization.

23311023530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331102360.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 23311023530 its reverse (3532011332), we get a palindrome (26843034862).

The spelling of 23311023530 in words is "twenty-three billion, three hundred eleven million, twenty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 2331102353 4662204706 11655511765 23311023530