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31020124300 = 22521128200113
BaseRepresentation
bin11100111000111100…
…011000100010001100
32222001211211120211121
4130320330120202030
51002012122434200
622130032530324
72145464464114
oct347074304214
988054746747
1031020124300
1112179062570
1260186b09a4
132c0482a149
141703b14044
15c18482e1a
hex738f1888c

31020124300 has 36 divisors (see below), whose sum is σ = 73433096856. Its totient is φ = 11280044800.

The previous prime is 31020124297. The next prime is 31020124307. The reversal of 31020124300 is 342102013.

It is a happy number.

It is a super-2 number, since 2×310201243002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31020124307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14098957 + ... + 14101156.

It is an arithmetic number, because the mean of its divisors is an integer number (2039808246).

Almost surely, 231020124300 is an apocalyptic number.

It is an amenable number.

31020124300 is an abundant number, since it is smaller than the sum of its proper divisors (42412972556).

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

31020124300 is a wasteful number, since it uses less digits than its factorization.

31020124300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28200138 (or 28200131 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31020124300 its reverse (342102013), we get a palindrome (31362226313).

The spelling of 31020124300 in words is "thirty-one billion, twenty million, one hundred twenty-four thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 28200113 56400226 112800452 141000565 282001130 310201243 564002260 620402486 705002825 1240804972 1410005650 1551006215 2820011300 3102012430 6204024860 7755031075 15510062150 31020124300