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30250311530 = 25171671065527
BaseRepresentation
bin11100001011000011…
…110001111101101010
32220002012022001020112
4130023003301331222
5443423034432110
621521413054322
72120426256035
oct341303617552
986065261215
1030250311530
111191356a86a
125a429273a2
132b111b652a
14166d7a601c
15bc0ac0405
hex70b0f1f6a

30250311530 has 32 divisors (see below), whose sum is σ = 57998820096. Its totient is φ = 11320148224.

The previous prime is 30250311523. The next prime is 30250311583. The reversal of 30250311530 is 3511305203.

It is a junction number, because it is equal to n+sod(n) for n = 30250311496 and 30250311505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504374 + ... + 561153.

It is an arithmetic number, because the mean of its divisors is an integer number (1812463128).

Almost surely, 230250311530 is an apocalyptic number.

30250311530 is a deficient number, since it is larger than the sum of its proper divisors (27748508566).

30250311530 is a wasteful number, since it uses less digits than its factorization.

30250311530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065718.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 30250311530 its reverse (3511305203), we get a palindrome (33761616733).

The spelling of 30250311530 in words is "thirty billion, two hundred fifty million, three hundred eleven thousand, five hundred thirty".

Divisors: 1 2 5 10 17 34 85 167 170 334 835 1670 2839 5678 14195 28390 1065527 2131054 5327635 10655270 18113959 36227918 90569795 177943009 181139590 355886018 889715045 1779430090 3025031153 6050062306 15125155765 30250311530