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142474332 = 2237111329409
BaseRepresentation
bin10000111110111…
…11110001011100
3100221002110001010
420133133301130
5242433134312
622045415220
73350004030
oct1037376134
9327073033
10142474332
1173472090
123b86a510
1323695650
1414cca1c0
15c79493c
hex87dfc5c

142474332 has 192 divisors, whose sum is σ = 462873600. Its totient is φ = 32901120.

The previous prime is 142474327. The next prime is 142474363. The reversal of 142474332 is 233474241.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 142474332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 348144 + ... + 348552.

It is an arithmetic number, because the mean of its divisors is an integer number (2410800).

Almost surely, 2142474332 is an apocalyptic number.

142474332 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 142474332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231436800).

142474332 is an abundant number, since it is smaller than the sum of its proper divisors (320399268).

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

142474332 is a wasteful number, since it uses less digits than its factorization.

142474332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 474 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 142474332 is about 11936.2612236831. The cubic root of 142474332 is about 522.2906002177.

Subtracting 142474332 from its reverse (233474241), we obtain a palindrome (90999909).

It can be divided in two parts, 142 and 474332, that added together give a palindrome (474474).

The spelling of 142474332 in words is "one hundred forty-two million, four hundred seventy-four thousand, three hundred thirty-two".