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140034254142 = 23731279249971
BaseRepresentation
bin1000001001101010110…
…0010010010100111110
3111101110020011011121010
42002122230102110332
54243242232113032
6144155244020050
713055115343416
oct2023254222476
9441406134533
10140034254142
115442a75a852
1223181231626
13102889c6413
146ac5dc7646
153998c3accc
hex209ab1253e

140034254142 has 32 divisors (see below), whose sum is σ = 284128174080. Its totient is φ = 46002479040.

The previous prime is 140034254111. The next prime is 140034254147. The reversal of 140034254142 is 241452430041.

It is a super-4 number, since 4×1400342541424 (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034254147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435217 + ... + 685187.

It is an arithmetic number, because the mean of its divisors is an integer number (8879005440).

Almost surely, 2140034254142 is an apocalyptic number.

140034254142 is an abundant number, since it is smaller than the sum of its proper divisors (144093919938).

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

140034254142 is a wasteful number, since it uses less digits than its factorization.

140034254142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251328.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 140034254142 its reverse (241452430041), we get a palindrome (381486684183).

The spelling of 140034254142 in words is "one hundred forty billion, thirty-four million, two hundred fifty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 73 146 219 438 1279 2558 3837 7674 93367 186734 249971 280101 499942 560202 749913 1499826 18247883 36495766 54743649 109487298 319712909 639425818 959138727 1918277454 23339042357 46678084714 70017127071 140034254142