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142202712 = 23361137709
BaseRepresentation
bin10000111100111…
…01011101011000
3100220120122110010
420132131131120
5242400441322
622035521520
73344463111
oct1036353530
9326518403
10142202712
11732a7003
123b7592a0
13235cbb22
1414c59208
15c73e20c
hex879d758

142202712 has 64 divisors (see below), whose sum is σ = 364485600. Its totient is φ = 46218240.

The previous prime is 142202701. The next prime is 142202717. The reversal of 142202712 is 217202241.

It is a super-2 number, since 2×1422027122 = 40443222600309888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142202717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200214 + ... + 200922.

Almost surely, 2142202712 is an apocalyptic number.

142202712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142202712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182242800).

142202712 is an abundant number, since it is smaller than the sum of its proper divisors (222282888).

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

142202712 is a wasteful number, since it uses less digits than its factorization.

142202712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 142202712 is about 11924.8778610097. The cubic root of 142202712 is about 521.9584823338.

Adding to 142202712 its reverse (217202241), we get a palindrome (359404953).

The spelling of 142202712 in words is "one hundred forty-two million, two hundred two thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 61 122 137 183 244 274 366 411 488 548 709 732 822 1096 1418 1464 1644 2127 2836 3288 4254 5672 8357 8508 16714 17016 25071 33428 43249 50142 66856 86498 97133 100284 129747 172996 194266 200568 259494 291399 345992 388532 518988 582798 777064 1037976 1165596 2331192 5925113 11850226 17775339 23700452 35550678 47400904 71101356 142202712