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2102114140 = 2257891131493
BaseRepresentation
bin111110101001011…
…1011011101011100
312102111111110111021
41331102323131130
513301120123030
6544331333524
7103043450440
oct17522733534
95374443437
102102114140
11989652515
124a7bb12a4
1327667b229
1415d27a820
15c483397a
hex7d4bb75c

2102114140 has 96 divisors (see below), whose sum is σ = 5150355840. Its totient is φ = 705847296.

The previous prime is 2102114137. The next prime is 2102114149. The reversal of 2102114140 is 414112012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102114149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1407234 + ... + 1408726.

It is an arithmetic number, because the mean of its divisors is an integer number (53649540).

Almost surely, 22102114140 is an apocalyptic number.

2102114140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102114140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2575177920).

2102114140 is an abundant number, since it is smaller than the sum of its proper divisors (3048241700).

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

2102114140 is a wasteful number, since it uses less digits than its factorization.

2102114140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2102114140 is about 45848.8183053827. The cubic root of 2102114140 is about 1281.0087547694.

Adding to 2102114140 its reverse (414112012), we get a palindrome (2516226152).

The spelling of 2102114140 in words is "two billion, one hundred two million, one hundred fourteen thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 89 113 140 178 226 356 445 452 565 623 791 890 1130 1246 1493 1582 1780 2260 2492 2986 3115 3164 3955 5972 6230 7465 7910 10057 10451 12460 14930 15820 20114 20902 29860 40228 41804 50285 52255 70399 100570 104510 132877 140798 168709 201140 209020 265754 281596 337418 351995 531508 664385 674836 703990 843545 930139 1180963 1328770 1407980 1687090 1860278 2361926 2657540 3374180 3720556 4650695 4723852 5904815 9301390 11809630 15015101 18602780 23619260 30030202 60060404 75075505 105105707 150151010 210211414 300302020 420422828 525528535 1051057070 2102114140