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312034343430 = 23510401144781
BaseRepresentation
bin1001000101001101011…
…00100011101000000110
31002211102012200000102110
410202212230203220012
520103021242442210
6355202510521450
731354334104605
oct4424654435006
91084365600373
10312034343430
11110373285677
1250583806286
132356a129394
141116153da3c
1581b3e65420
hex48a6b23a06

312034343430 has 16 divisors (see below), whose sum is σ = 748882424304. Its totient is φ = 83209158240.

The previous prime is 312034343389. The next prime is 312034343437. The reversal of 312034343430 is 34343430213.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10401144781 = 312034343430 / (3 + 1 + 2 + 0 + 3 + 4 + 3 + 4 + 3 + 4 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312034343437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5200572361 + ... + 5200572420.

It is an arithmetic number, because the mean of its divisors is an integer number (46805151519).

Almost surely, 2312034343430 is an apocalyptic number.

312034343430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312034343430 is an abundant number, since it is smaller than the sum of its proper divisors (436848080874).

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

312034343430 is a wasteful number, since it uses less digits than its factorization.

312034343430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10401144791.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 312034343430 its reverse (34343430213), we get a palindrome (346377773643).

The spelling of 312034343430 in words is "three hundred twelve billion, thirty-four million, three hundred forty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10401144781 20802289562 31203434343 52005723905 62406868686 104011447810 156017171715 312034343430