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2120130120 = 233580921839
BaseRepresentation
bin111111001011110…
…1001111001001000
312110202101202202210
41332113221321020
513320223130440
6550213425120
7103352544243
oct17627517110
95422352683
102120130120
11998838159
124b203b1a0
1327a318584
1416180a25a
15c61e1a80
hex7e5e9e48

2120130120 has 64 divisors (see below), whose sum is σ = 6368544000. Its totient is φ = 564643328.

The previous prime is 2120130109. The next prime is 2120130139. The reversal of 2120130120 is 210310212.

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 = 2120130096 and 2120130105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86161 + ... + 107999.

It is an arithmetic number, because the mean of its divisors is an integer number (99508500).

Almost surely, 22120130120 is an apocalyptic number.

2120130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120130120 is an abundant number, since it is smaller than the sum of its proper divisors (4248413880).

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

2120130120 is a wasteful number, since it uses less digits than its factorization.

2120130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22662 (or 22658 counting only the distinct ones).

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

The square root of 2120130120 is about 46044.8707241100. The cubic root of 2120130120 is about 1284.6579396074.

Adding to 2120130120 its reverse (210310212), we get a palindrome (2330440332).

The spelling of 2120130120 in words is "two billion, one hundred twenty million, one hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 809 1618 2427 3236 4045 4854 6472 8090 9708 12135 16180 19416 21839 24270 32360 43678 48540 65517 87356 97080 109195 131034 174712 218390 262068 327585 436780 524136 655170 873560 1310340 2620680 17667751 35335502 53003253 70671004 88338755 106006506 141342008 176677510 212013012 265016265 353355020 424026024 530032530 706710040 1060065060 2120130120