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312230112030 = 23256615248447
BaseRepresentation
bin1001000101100100101…
…11010110101100011110
31002211220212001002110100
410202302113112230132
520103421402041110
6355234142521530
731362232106544
oct4426227265436
91084825032410
10312230112030
11110463838501
12506192962a6
132359b8616a5
141117d53dd94
1581c6235bc0
hex48b25d6b1e

312230112030 has 48 divisors (see below), whose sum is σ = 813026582784. Its totient is φ = 83135384640.

The previous prime is 312230112001. The next prime is 312230112091. The reversal of 312230112030 is 30211032213.

312230112030 is a `hidden beast` number, since 312 + 2 + 301 + 1 + 20 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312230111994 and 312230112012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2564734 + ... + 2683713.

It is an arithmetic number, because the mean of its divisors is an integer number (16938053808).

Almost surely, 2312230112030 is an apocalyptic number.

312230112030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312230112030 is an abundant number, since it is smaller than the sum of its proper divisors (500796470754).

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

312230112030 is a wasteful number, since it uses less digits than its factorization.

312230112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249121 (or 5249118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 312230112030 its reverse (30211032213), we get a palindrome (342441144243).

The spelling of 312230112030 in words is "three hundred twelve billion, two hundred thirty million, one hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 661 1322 1983 3305 3966 5949 6610 9915 11898 19830 29745 59490 5248447 10496894 15745341 26242235 31490682 47236023 52484470 78726705 94472046 157453410 236180115 472360230 3469223467 6938446934 10407670401 17346117335 20815340802 31223011203 34692234670 52038352005 62446022406 104076704010 156115056015 312230112030