Search a number
-
+
31020124324 = 2271117199173
BaseRepresentation
bin11100111000111100…
…011000100010100100
32222001211211120212111
4130320330120202210
51002012122434244
622130032530404
72145464464150
oct347074304244
988054746774
1031020124324
1112179062592
1260186b0a04
132c0482a167
141703b14060
15c18482e34
hex738f188a4

31020124324 has 24 divisors (see below), whose sum is σ = 62046427968. Its totient is φ = 13293014880.

The previous prime is 31020124309. The next prime is 31020124367. The reversal of 31020124324 is 42342102013.

It is a super-2 number, since 2×310201243242 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31020124295 and 31020124304.

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, 263202 + ... + 362374.

It is an arithmetic number, because the mean of its divisors is an integer number (2585267832).

Almost surely, 231020124324 is an apocalyptic number.

It is an amenable number.

31020124324 is an abundant number, since it is smaller than the sum of its proper divisors (31026303644).

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

31020124324 is a wasteful number, since it uses less digits than its factorization.

31020124324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110355 (or 110353 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31020124324 its reverse (42342102013), we get a palindrome (73362226337).

The spelling of 31020124324 in words is "thirty-one billion, twenty million, one hundred twenty-four thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 11171 22342 44684 78197 99173 156394 198346 312788 396692 694211 1388422 2776844 1107861583 2215723166 4431446332 7755031081 15510062162 31020124324