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2905121230 = 2511374715187
BaseRepresentation
bin1010110100101000…
…1010000111001110
321111110111110010121
42231022022013032
521422202334410
61200134455154
7131664060124
oct25512120716
97443443117
102905121230
111260957640
12690b044ba
13373b44a5b
141d7b89914
151200a19da
hexad28a1ce

2905121230 has 64 divisors (see below), whose sum is σ = 5983828992. Its totient is φ = 1005920640.

The previous prime is 2905121221. The next prime is 2905121239. The reversal of 2905121230 is 321215092.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2905121221) and next prime (2905121239).

It is a junction number, because it is equal to n+sod(n) for n = 2905121195 and 2905121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905121239) 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, 183697 + ... + 198883.

It is an arithmetic number, because the mean of its divisors is an integer number (93497328).

Almost surely, 22905121230 is an apocalyptic number.

2905121230 is an abundant number, since it is smaller than the sum of its proper divisors (3078707762).

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

2905121230 is a wasteful number, since it uses less digits than its factorization.

2905121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15289.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2905121230 is about 53899.1765243218. The cubic root of 2905121230 is about 1426.8820896957.

The spelling of 2905121230 in words is "two billion, nine hundred five million, one hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 37 47 55 74 94 110 185 235 370 407 470 517 814 1034 1739 2035 2585 3478 4070 5170 8695 15187 17390 19129 30374 38258 75935 95645 151870 167057 191290 334114 561919 713789 835285 1123838 1427578 1670570 2809595 3568945 5619190 6181109 7137890 7851679 12362218 15703358 26410193 30905545 39258395 52820386 61811090 78516790 132050965 264101930 290512123 581024246 1452560615 2905121230