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2120613120 = 28325184081
BaseRepresentation
bin111111001100101…
…1111110100000000
312110210022022022200
41332121133310000
513320334104440
6550232033200
7103356625353
oct17631376400
95423268280
102120613120
1199903802a
124b2232800
1327a457382
141618d429a
15c6289c30
hex7e65fd00

2120613120 has 108 divisors (see below), whose sum is σ = 7337140356. Its totient is φ = 565493760.

The previous prime is 2120613113. The next prime is 2120613191. The reversal of 2120613120 is 213160212.

2120613120 is a `hidden beast` number, since 21 + 20 + 613 + 12 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1217730816 + 902882304 = 34896^2 + 30048^2 .

It is a super-2 number, since 2×21206131202 = 8994000009432268800, which contains 22 as substring.

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 = 2120613093 and 2120613102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80521 + ... + 103560.

Almost surely, 22120613120 is an apocalyptic number.

2120613120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120613120 is an abundant number, since it is smaller than the sum of its proper divisors (5216527236).

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

2120613120 is a wasteful number, since it uses less digits than its factorization.

2120613120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184108 (or 184091 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2120613120 is about 46050.1153093019. The cubic root of 2120613120 is about 1284.7554874993.

Adding to 2120613120 its reverse (213160212), we get a palindrome (2333773332).

The spelling of 2120613120 in words is "two billion, one hundred twenty million, six hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 576 640 720 768 960 1152 1280 1440 1920 2304 2880 3840 5760 11520 184081 368162 552243 736324 920405 1104486 1472648 1656729 1840810 2208972 2761215 2945296 3313458 3681620 4417944 5522430 5890592 6626916 7363240 8283645 8835888 11044860 11781184 13253832 14726480 16567290 17671776 22089720 23562368 26507664 29452960 33134580 35343552 44179440 47124736 53015328 58905920 66269160 70687104 88358880 106030656 117811840 132538320 141374208 176717760 212061312 235623680 265076640 353435520 424122624 530153280 706871040 1060306560 2120613120