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312542303020 = 22515627115151
BaseRepresentation
bin1001000110001001111…
…10010001001100101100
31002212201121111000222121
410203010332101030230
520110041312144040
6355325134122324
731403042512423
oct4430476211454
91085647430877
10312542303020
11110603a89192
12506a59503a4
132361b43a39c
14111acba82ba
1581e3851c4a
hex48c4f9132c

312542303020 has 12 divisors (see below), whose sum is σ = 656338836384. Its totient is φ = 125016921200.

The previous prime is 312542302987. The next prime is 312542303071. The reversal of 312542303020 is 20303245213.

It is a super-2 number, since 2×3125423030202 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7813557556 + ... + 7813557595.

It is an arithmetic number, because the mean of its divisors is an integer number (54694903032).

Almost surely, 2312542303020 is an apocalyptic number.

It is an amenable number.

312542303020 is an abundant number, since it is smaller than the sum of its proper divisors (343796533364).

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

312542303020 is a wasteful number, since it uses less digits than its factorization.

312542303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15627115160 (or 15627115158 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 312542303020 its reverse (20303245213), we get a palindrome (332845548233).

The spelling of 312542303020 in words is "three hundred twelve billion, five hundred forty-two million, three hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 15627115151 31254230302 62508460604 78135575755 156271151510 312542303020