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2105310130 = 257113189991
BaseRepresentation
bin111110101111100…
…0111101110110010
312102201111211120021
41331133013232302
513302424411010
6544524034054
7103112561260
oct17537075662
95381454507
102105310130
11990435730
124a909292a
13277229b51
1415d86d430
15c4c658da
hex7d7c7bb2

2105310130 has 128 divisors (see below), whose sum is σ = 4936826880. Its totient is φ = 627264000.

The previous prime is 2105310121. The next prime is 2105310173. The reversal of 2105310130 is 310135012.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2123935 + ... + 2124925.

It is an arithmetic number, because the mean of its divisors is an integer number (38568960).

Almost surely, 22105310130 is an apocalyptic number.

2105310130 is an abundant number, since it is smaller than the sum of its proper divisors (2831516750).

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

2105310130 is a wasteful number, since it uses less digits than its factorization.

2105310130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 2105310130 is about 45883.6586379072. The cubic root of 2105310130 is about 1281.6576282058.

Adding to 2105310130 its reverse (310135012), we get a palindrome (2415445142).

The spelling of 2105310130 in words is "two billion, one hundred five million, three hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 31 35 55 62 70 77 89 110 154 155 178 217 310 341 385 434 445 623 682 770 890 979 991 1085 1246 1705 1958 1982 2170 2387 2759 3115 3410 4774 4895 4955 5518 6230 6853 6937 9790 9910 10901 11935 13706 13795 13874 19313 21802 23870 27590 30349 30721 34265 34685 38626 54505 60698 61442 68530 69370 76307 88199 96565 109010 151745 152614 153605 176398 193130 212443 215047 303490 307210 337931 381535 424886 430094 440995 617393 675862 763070 881990 970189 1062215 1075235 1234786 1689655 1940378 2124430 2150470 2365517 2734169 3086965 3379310 4731034 4850945 5468338 6173930 6791323 9701890 11827585 13582646 13670845 19139183 23655170 27341690 30075859 33956615 38278366 60151718 67913230 95695915 150379295 191391830 210531013 300758590 421062026 1052655065 2105310130