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142127934 = 231373109229
BaseRepresentation
bin10000111100010…
…11001100111110
3100220102211212120
420132023030332
5242341043214
622034143410
73344032104
oct1036131476
9326384776
10142127934
1173255903
123b721b66
13235a3a90
1414c39c74
15c726ea9
hex878b33e

142127934 has 64 divisors (see below), whose sum is σ = 314529600. Its totient is φ = 42550272.

The previous prime is 142127929. The next prime is 142127957. The reversal of 142127934 is 439721241.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142127895 and 142127904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 620532 + ... + 620760.

It is an arithmetic number, because the mean of its divisors is an integer number (4914525).

Almost surely, 2142127934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142127934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157264800).

142127934 is an abundant number, since it is smaller than the sum of its proper divisors (172401666).

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

142127934 is a wasteful number, since it uses less digits than its factorization.

142127934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its digits is 12096, while the sum is 33.

The square root of 142127934 is about 11921.7420706875. The cubic root of 142127934 is about 521.8669748082.

The spelling of 142127934 in words is "one hundred forty-two million, one hundred twenty-seven thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 73 78 109 146 218 219 229 327 438 458 654 687 949 1374 1417 1898 2834 2847 2977 4251 5694 5954 7957 8502 8931 15914 16717 17862 23871 24961 33434 47742 49922 50151 74883 100302 103441 149766 206882 217321 310323 324493 434642 620646 648986 651963 973479 1303926 1822153 1946958 3644306 5466459 10932918 23687989 47375978 71063967 142127934