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20112142310 = 25132371211449
BaseRepresentation
bin10010101110110001…
…101110111111100110
31220220122112200120122
4102232301232333212
5312142202023220
613123413001542
71311253250261
oct225661567746
956818480518
1020112142310
118590864217
123a936232b2
131b869b0130
14d8b157cd8
157caa1d425
hex4aec6efe6

20112142310 has 128 divisors (see below), whose sum is σ = 41542502400. Its totient is φ = 6954393600.

The previous prime is 20112142301. The next prime is 20112142319. The reversal of 20112142310 is 1324121102.

It is an interprime number because it is at equal distance from previous prime (20112142301) and next prime (20112142319).

It is a super-2 number, since 2×201121423102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112142319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44792966 + ... + 44793414.

It is an arithmetic number, because the mean of its divisors is an integer number (324550800).

Almost surely, 220112142310 is an apocalyptic number.

20112142310 is an abundant number, since it is smaller than the sum of its proper divisors (21430360090).

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

20112142310 is a wasteful number, since it uses less digits than its factorization.

20112142310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20112142310 its reverse (1324121102), we get a palindrome (21436263412).

The spelling of 20112142310 in words is "twenty billion, one hundred twelve million, one hundred forty-two thousand, three hundred ten".

Divisors: 1 2 5 10 13 23 26 46 65 71 115 130 142 211 230 299 355 422 449 598 710 898 923 1055 1495 1633 1846 2110 2245 2743 2990 3266 4490 4615 4853 5486 5837 8165 9230 9706 10327 11674 13715 14981 16330 20654 21229 24265 27430 29185 29962 31879 42458 48530 51635 58370 63089 63758 74905 94739 103270 106145 126178 134251 149810 159395 189478 194753 212290 268502 315445 318790 344563 389506 414427 473695 630890 671255 689126 733217 828854 947390 973765 1231607 1342510 1466434 1722815 1947530 2072135 2178997 2463214 3445630 3666085 4144270 4357994 4479319 6158035 6726469 7332170 8958638 9531821 10894985 12316070 13452938 19063642 21789970 22396595 28326961 33632345 44793190 47659105 56653922 67264690 87444097 95318210 141634805 154708787 174888194 283269610 309417574 437220485 773543935 874440970 1547087870 2011214231 4022428462 10056071155 20112142310