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30430210340 = 2251521510517
BaseRepresentation
bin11100010101110010…
…000010100100100100
32220112201210212000102
4130111302002210210
5444310113212330
621551321003232
72125042343255
oct342562024444
986481725012
1030430210340
11119a6073472
125a93023518
132b3c55332a
141689634b2c
15bd17a8945
hex715c82924

30430210340 has 12 divisors (see below), whose sum is σ = 63903441756. Its totient is φ = 12172084128.

The previous prime is 30430210339. The next prime is 30430210351. The reversal of 30430210340 is 4301203403.

It can be written as a sum of positive squares in 2 ways, for example, as 8269719844 + 22160490496 = 90938^2 + 148864^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1521510517 = 30430210340 / (3 + 0 + 4 + 3 + 0 + 2 + 1 + 0 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760755239 + ... + 760755278.

It is an arithmetic number, because the mean of its divisors is an integer number (5325286813).

Almost surely, 230430210340 is an apocalyptic number.

It is an amenable number.

30430210340 is an abundant number, since it is smaller than the sum of its proper divisors (33473231416).

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

30430210340 is a wasteful number, since it uses less digits than its factorization.

30430210340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521510526 (or 1521510524 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30430210340 its reverse (4301203403), we get a palindrome (34731413743).

The spelling of 30430210340 in words is "thirty billion, four hundred thirty million, two hundred ten thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1521510517 3043021034 6086042068 7607552585 15215105170 30430210340