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245313031211 = 19211233926161
BaseRepresentation
bin1110010001110111001…
…0111100110000101011
3212110012021202011122122
43210131302330300223
513004400113444321
6304410101341455
723503041234503
oct3443562746053
9773167664578
10245313031211
11950448a1226
123b662a0788b
131a196041591
14bc32156a03
1565ab5e78ab
hex391dcbcc2b

245313031211 has 16 divisors (see below), whose sum is σ = 259568899200. Its totient is φ = 231192662400.

The previous prime is 245313031207. The next prime is 245313031213. The reversal of 245313031211 is 112130313542.

It is a cyclic number.

It is not a de Polignac number, because 245313031211 - 22 = 245313031207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245313031213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9363971 + ... + 9390131.

It is an arithmetic number, because the mean of its divisors is an integer number (16223056200).

Almost surely, 2245313031211 is an apocalyptic number.

245313031211 is a deficient number, since it is larger than the sum of its proper divisors (14255867989).

245313031211 is a wasteful number, since it uses less digits than its factorization.

245313031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28730.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 245313031211 its reverse (112130313542), we get a palindrome (357443344753).

The spelling of 245313031211 in words is "two hundred forty-five billion, three hundred thirteen million, thirty-one thousand, two hundred eleven".

Divisors: 1 19 211 2339 4009 26161 44441 493529 497059 5519971 9377051 61190579 104879449 1162621001 12911212169 245313031211