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312311313130 = 25190371640549
BaseRepresentation
bin1001000101101110011…
…01000111001011101010
31002212010111211112102111
410202313031013023222
520104103144010010
6355250203152534
731364236234465
oct4426715071352
91085114745374
10312311313130
111104a565a053
125064051574a
13235b262268b
141118a23a2dc
1581cd42558a
hex48b73472ea

312311313130 has 16 divisors (see below), whose sum is σ = 562190236200. Its totient is φ = 124917886912.

The previous prime is 312311313107. The next prime is 312311313163. The reversal of 312311313130 is 31313113213.

It can be written as a sum of positive squares in 4 ways, for example, as 109376379841 + 202934933289 = 330721^2 + 450483^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629905 + ... + 1010644.

Almost surely, 2312311313130 is an apocalyptic number.

312311313130 is a deficient number, since it is larger than the sum of its proper divisors (249878923070).

312311313130 is a wasteful number, since it uses less digits than its factorization.

312311313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659593.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 312311313130 its reverse (31313113213), we get a palindrome (343624426343).

The spelling of 312311313130 in words is "three hundred twelve billion, three hundred eleven million, three hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 5 10 19037 38074 95185 190370 1640549 3281098 8202745 16405490 31231131313 62462262626 156155656565 312311313130