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212040310120 = 23547112787399
BaseRepresentation
bin1100010101111010010…
…1100101110101101000
3202021022110020210221021
43011132211211311220
511433224304410440
6241224315422224
721214361616652
oct3053645456550
9667273223837
10212040310120
1181a20255421
1235117a54974
1316cc2928732
14a3971d36d2
1557b050884a
hex315e965d68

212040310120 has 32 divisors (see below), whose sum is σ = 487241568000. Its totient is φ = 83011524928.

The previous prime is 212040310109. The next prime is 212040310147. The reversal of 212040310120 is 21013040212.

It is a super-2 number, since 2×2120403101202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212040310094 and 212040310103.

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, 56391820 + ... + 56395579.

It is an arithmetic number, because the mean of its divisors is an integer number (15226299000).

Almost surely, 2212040310120 is an apocalyptic number.

212040310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212040310120 is an abundant number, since it is smaller than the sum of its proper divisors (275201257880).

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

212040310120 is a wasteful number, since it uses less digits than its factorization.

212040310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112787457 (or 112787453 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212040310120 its reverse (21013040212), we get a palindrome (233053350332).

The spelling of 212040310120 in words is "two hundred twelve billion, forty million, three hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1880 112787399 225574798 451149596 563936995 902299192 1127873990 2255747980 4511495960 5301007753 10602015506 21204031012 26505038765 42408062024 53010077530 106020155060 212040310120