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1210230120 = 233511916841
BaseRepresentation
bin100100000100010…
…1010010101101000
310010100021001121210
41020020222111220
54434304330440
6320031233120
741663533461
oct11010522550
93110231553
101210230120
11571163890
122993787a0
131639669c8
14b6a33d68
15713aba80
hex4822a568

1210230120 has 64 divisors (see below), whose sum is σ = 3960757440. Its totient is φ = 293388800.

The previous prime is 1210230107. The next prime is 1210230149. The reversal of 1210230120 is 210320121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210230096 and 1210230105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457101 + ... + 459740.

It is an arithmetic number, because the mean of its divisors is an integer number (61886835).

Almost surely, 21210230120 is an apocalyptic number.

1210230120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210230120 is an abundant number, since it is smaller than the sum of its proper divisors (2750527320).

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

1210230120 is a wasteful number, since it uses less digits than its factorization.

1210230120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916866 (or 916862 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210230120 is about 34788.3618470315. The cubic root of 1210230120 is about 1065.6697852082.

Adding to 1210230120 its reverse (210320121), we get a palindrome (1420550241).

Subtracting from 1210230120 its reverse (210320121), we obtain a palindrome (999909999).

The spelling of 1210230120 in words is "one billion, two hundred ten million, two hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 916841 1833682 2750523 3667364 4584205 5501046 7334728 9168410 10085251 11002092 13752615 18336820 20170502 22004184 27505230 30255753 36673640 40341004 50426255 55010460 60511506 80682008 100852510 110020920 121023012 151278765 201705020 242046024 302557530 403410040 605115060 1210230120