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142232814 = 2335349697
BaseRepresentation
bin10000111101001…
…00110011101110
3100220122011202000
420132210303232
5242402422224
622040313130
73344646633
oct1036446356
9326564660
10142232814
1173317689
123b7727a6
132360c739
1414c6618a
15c7480c9
hex87a4cee

142232814 has 32 divisors (see below), whose sum is σ = 322043040. Its totient is φ = 46515456.

The previous prime is 142232747. The next prime is 142232819. The reversal of 142232814 is 418232241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142232819) 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, 21987 + ... + 27710.

It is an arithmetic number, because the mean of its divisors is an integer number (10063845).

Almost surely, 2142232814 is an apocalyptic number.

142232814 is an abundant number, since it is smaller than the sum of its proper divisors (179810226).

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

142232814 is a wasteful number, since it uses less digits than its factorization.

142232814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49761 (or 49755 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 142232814 is about 11926.1399455146. The cubic root of 142232814 is about 521.9953097742.

The spelling of 142232814 in words is "one hundred forty-two million, two hundred thirty-two thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 27 53 54 106 159 318 477 954 1431 2862 49697 99394 149091 298182 447273 894546 1341819 2633941 2683638 5267882 7901823 15803646 23705469 47410938 71116407 142232814