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312220130010 = 23510407337667
BaseRepresentation
bin1001000101100011100…
…01010001101011011010
31002211220011020221200220
410202301301101223122
520103411323130020
6355233144540510
731362051213465
oct4426161215332
91084804227626
10312220130010
1111045913a8a8
1250615a81736
1323599778079
141117c0a22dc
1581c5413240
hex48b1c51ada

312220130010 has 16 divisors (see below), whose sum is σ = 749328312096. Its totient is φ = 83258701328.

The previous prime is 312220129993. The next prime is 312220130011. The reversal of 312220130010 is 10031022213.

It is a super-2 number, since 2×3122201300102 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (312220130011) 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, 5203668804 + ... + 5203668863.

It is an arithmetic number, because the mean of its divisors is an integer number (46833019506).

Almost surely, 2312220130010 is an apocalyptic number.

312220130010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312220130010 is an abundant number, since it is smaller than the sum of its proper divisors (437108182086).

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

312220130010 is a wasteful number, since it uses less digits than its factorization.

312220130010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407337677.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 312220130010 its reverse (10031022213), we get a palindrome (322251152223).

The spelling of 312220130010 in words is "three hundred twelve billion, two hundred twenty million, one hundred thirty thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 10407337667 20814675334 31222013001 52036688335 62444026002 104073376670 156110065005 312220130010