Search a number
-
+
120001230420 = 22352338583779
BaseRepresentation
bin110111111000010100…
…0010111011001010100
3102110202002111010022120
41233300220113121110
53431230303333140
6131043334455540
711445512425431
oct1576050273124
9373662433276
10120001230420
114698a6255a5
121b3102045b0
13b415528426
145b45586b88
1531c514a1d0
hex1bf0a17654

120001230420 has 48 divisors (see below), whose sum is σ = 337445559360. Its totient is φ = 31862983936.

The previous prime is 120001230413. The next prime is 120001230467. The reversal of 120001230420 is 24032100021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120001230420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4277910 + ... + 4305869.

It is an arithmetic number, because the mean of its divisors is an integer number (7030115820).

Almost surely, 2120001230420 is an apocalyptic number.

120001230420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001230420 is an abundant number, since it is smaller than the sum of its proper divisors (217444328940).

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

120001230420 is a wasteful number, since it uses less digits than its factorization.

120001230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8584024 (or 8584022 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 120001230420 its reverse (24032100021), we get a palindrome (144033330441).

The spelling of 120001230420 in words is "one hundred twenty billion, one million, two hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 233 466 699 932 1165 1398 2330 2796 3495 4660 6990 13980 8583779 17167558 25751337 34335116 42918895 51502674 85837790 103005348 128756685 171675580 257513370 515026740 2000020507 4000041014 6000061521 8000082028 10000102535 12000123042 20000205070 24000246084 30000307605 40000410140 60000615210 120001230420