Search a number
-
+
142105370 = 25111967993
BaseRepresentation
bin10000111100001…
…01101100011010
3100220101200220212
420132011230122
5242334332440
622033451122
73343606241
oct1036055432
9326350825
10142105370
117323a960
123b710aa2
1323596724
1414c31958
15c720465
hex8785b1a

142105370 has 32 divisors (see below), whose sum is σ = 293734080. Its totient is φ = 48954240.

The previous prime is 142105367. The next prime is 142105373. The reversal of 142105370 is 73501241.

It is an interprime number because it is at equal distance from previous prime (142105367) and next prime (142105373).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142105373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31907 + ... + 36086.

It is an arithmetic number, because the mean of its divisors is an integer number (9179190).

Almost surely, 2142105370 is an apocalyptic number.

142105370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142105370 is an abundant number, since it is smaller than the sum of its proper divisors (151628710).

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

142105370 is a wasteful number, since it uses less digits than its factorization.

142105370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68030.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 142105370 is about 11920.7956949190. The cubic root of 142105370 is about 521.8393564287.

The spelling of 142105370 in words is "one hundred forty-two million, one hundred five thousand, three hundred seventy".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 67993 135986 339965 679930 747923 1291867 1495846 2583734 3739615 6459335 7479230 12918670 14210537 28421074 71052685 142105370