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120213023220 = 223251264752807
BaseRepresentation
bin110111111110101000…
…0010010100111110100
3102111021212000022102100
41233331100102213310
53432144013220340
6131120342142100
711453663560233
oct1577520224764
9374255008370
10120213023220
1146a89132674
121b36b121930
13b44a381304
145b65758b1a
1531d8a33830
hex1bfd4129f4

120213023220 has 72 divisors (see below), whose sum is σ = 364681908864. Its totient is φ = 32053664448.

The previous prime is 120213023207. The next prime is 120213023243. The reversal of 120213023220 is 22320312021.

120213023220 is a `hidden beast` number, since 1 + 20 + 21 + 302 + 322 + 0 = 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 = 120213023193 and 120213023202.

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, 2250057 + ... + 2302863.

It is an arithmetic number, because the mean of its divisors is an integer number (5065026512).

Almost surely, 2120213023220 is an apocalyptic number.

120213023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120213023220 is an abundant number, since it is smaller than the sum of its proper divisors (244468885644).

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

120213023220 is a wasteful number, since it uses less digits than its factorization.

120213023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65469 (or 65464 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 120213023220 its reverse (22320312021), we get a palindrome (142533335241).

The spelling of 120213023220 in words is "one hundred twenty billion, two hundred thirteen million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 12647 25294 37941 50588 52807 63235 75882 105614 113823 126470 151764 158421 189705 211228 227646 252940 264035 316842 379410 455292 475263 528070 569115 633684 758820 792105 950526 1056140 1138230 1584210 1901052 2276460 2376315 3168420 4752630 9505260 667850129 1335700258 2003550387 2671400516 3339250645 4007100774 6010651161 6678501290 8014201548 10017751935 12021302322 13357002580 20035503870 24042604644 30053255805 40071007740 60106511610 120213023220