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312030101320 = 235710910223791
BaseRepresentation
bin1001000101001100111…
…00010111111101001000
31002211101220200111100021
410202212130113331020
520103014201220240
6355202235550224
731354253046130
oct4424634277510
91084356614307
10312030101320
111103709484a3
12505822bb374
13235692a2562
1411160b57ac0
1581b38c854a
hex48a6717f48

312030101320 has 64 divisors (see below), whose sum is σ = 809724326400. Its totient is φ = 106000254720.

The previous prime is 312030101281. The next prime is 312030101323. The reversal of 312030101320 is 23101030213.

It is a junction number, because it is equal to n+sod(n) for n = 312030101294 and 312030101303.

It is not an unprimeable number, because it can be changed into a prime (312030101323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5081376 + ... + 5142415.

It is an arithmetic number, because the mean of its divisors is an integer number (12651942600).

Almost surely, 2312030101320 is an apocalyptic number.

It is an amenable number.

312030101320 is an abundant number, since it is smaller than the sum of its proper divisors (497694225080).

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

312030101320 is a wasteful number, since it uses less digits than its factorization.

312030101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223918 (or 10223914 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312030101320 its reverse (23101030213), we get a palindrome (335131131533).

The spelling of 312030101320 in words is "three hundred twelve billion, thirty million, one hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 109 140 218 280 436 545 763 872 1090 1526 2180 3052 3815 4360 6104 7630 15260 30520 10223791 20447582 40895164 51118955 71566537 81790328 102237910 143133074 204475820 286266148 357832685 408951640 572532296 715665370 1114393219 1431330740 2228786438 2862661480 4457572876 5571966095 7800752533 8915145752 11143932190 15601505066 22287864380 31203010132 39003762665 44575728760 62406020264 78007525330 156015050660 312030101320