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2120993628 = 2231347443653
BaseRepresentation
bin111111001101011…
…1100101101011100
312110211000122021120
41332122330231130
513320433244003
6550244130540
7103363101615
oct17632745534
95424018246
102120993628
119992779a6
124b2396a50
1327a55b620
14161992c0c
15c6312853
hex7e6bcb5c

2120993628 has 96 divisors (see below), whose sum is σ = 5463714816. Its totient is φ = 636310272.

The previous prime is 2120993597. The next prime is 2120993639. The reversal of 2120993628 is 8263990212.

It is a super-2 number, since 2×21209936282 = 8997227940033204768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120993628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3247750 + ... + 3248402.

It is an arithmetic number, because the mean of its divisors is an integer number (56913696).

Almost surely, 22120993628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120993628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2731857408).

2120993628 is an abundant number, since it is smaller than the sum of its proper divisors (3342721188).

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

2120993628 is a wasteful number, since it uses less digits than its factorization.

2120993628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2120993628 is about 46054.2465794415. The cubic root of 2120993628 is about 1284.8323254195.

The spelling of 2120993628 in words is "two billion, one hundred twenty million, nine hundred ninety-three thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 47 52 78 94 141 156 188 282 443 564 611 653 886 1222 1306 1329 1772 1833 1959 2444 2612 2658 3666 3918 5316 5759 7332 7836 8489 11518 16978 17277 20821 23036 25467 30691 33956 34554 41642 50934 61382 62463 69108 83284 92073 101868 122764 124926 184146 249852 270673 289279 368292 398983 541346 578558 797966 812019 867837 1082692 1157116 1196949 1595932 1624038 1735674 2393898 3248076 3471348 3760627 4787796 7521254 11281881 13596113 15042508 22563762 27192226 40788339 45127524 54384452 81576678 163153356 176749469 353498938 530248407 706997876 1060496814 2120993628