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120143431422 = 23273130758687
BaseRepresentation
bin110111111100100011…
…0110100011011111110
3102111010000001200102100
41233321012310123332
53432023204301142
6131105414405530
711452160213550
oct1577106643376
9374100050370
10120143431422
1146a52920293
121b34b9608a6
13b438b26531
145b5a4014d0
1531d2888b4c
hex1bf91b46fe

120143431422 has 48 divisors (see below), whose sum is σ = 307094740992. Its totient is φ = 33219380880.

The previous prime is 120143431363. The next prime is 120143431451. The reversal of 120143431422 is 224134341021.

120143431422 is a `hidden beast` number, since 1 + 201 + 4 + 3 + 4 + 31 + 422 = 666.

It is a super-2 number, since 2×1201434314222 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15375438 + ... + 15383249.

It is an arithmetic number, because the mean of its divisors is an integer number (6397807104).

Almost surely, 2120143431422 is an apocalyptic number.

120143431422 is an abundant number, since it is smaller than the sum of its proper divisors (186951309570).

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

120143431422 is a wasteful number, since it uses less digits than its factorization.

120143431422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30758733 (or 30758730 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 120143431422 its reverse (224134341021), we get a palindrome (344277772443).

The spelling of 120143431422 in words is "one hundred twenty billion, one hundred forty-three million, four hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 31 42 62 63 93 126 186 217 279 434 558 651 1302 1953 3906 30758687 61517374 92276061 184552122 215310809 276828183 430621618 553656366 645932427 953519297 1291864854 1907038594 1937797281 2860557891 3875594562 5721115782 6674635079 8581673673 13349270158 17163347346 20023905237 40047810474 60071715711 120143431422