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142451683 = 11192291237
BaseRepresentation
bin10000111110110…
…10001111100011
3100221001021222021
420133122033203
5242431423213
622045122311
73346551013
oct1037321743
9327037867
10142451683
1173457070
123b859397
132368824a
1414cc1c43
15c78cd8d
hex87da3e3

142451683 has 24 divisors (see below), whose sum is σ = 169804080. Its totient is φ = 118359360.

The previous prime is 142451681. The next prime is 142451693. The reversal of 142451683 is 386154241.

It is not a de Polignac number, because 142451683 - 21 = 142451681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142451681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114541 + ... + 115777.

It is an arithmetic number, because the mean of its divisors is an integer number (7075170).

Almost surely, 2142451683 is an apocalyptic number.

142451683 is a deficient number, since it is larger than the sum of its proper divisors (27352397).

142451683 is a wasteful number, since it uses less digits than its factorization.

142451683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1296 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 142451683 is about 11935.3124383068. The cubic root of 142451683 is about 522.2629227487.

The spelling of 142451683 in words is "one hundred forty-two million, four hundred fifty-one thousand, six hundred eighty-three".

Divisors: 1 11 19 29 209 319 361 551 1237 3971 6061 10469 13607 23503 35873 115159 258533 394603 446557 681587 4912127 7497457 12950153 142451683