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142349076 = 2234439349
BaseRepresentation
bin10000111110000…
…01001100010100
3100220212002020000
420133001030110
5242420132301
622043011300
73345642612
oct1037011424
9326762200
10142349076
1173396a71
123b809b30
132365062c
1414c966b2
15c76c786
hex87c1314

142349076 has 30 divisors (see below), whose sum is σ = 372129450. Its totient is φ = 47449584.

The previous prime is 142349017. The next prime is 142349111. The reversal of 142349076 is 670943241.

It can be written as a sum of positive squares in only one way, i.e., 75272976 + 67076100 = 8676^2 + 8190^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142349076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 219351 + ... + 219998.

It is an arithmetic number, because the mean of its divisors is an integer number (12404315).

Almost surely, 2142349076 is an apocalyptic number.

It is an amenable number.

142349076 is an abundant number, since it is smaller than the sum of its proper divisors (229780374).

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

142349076 is a wasteful number, since it uses less digits than its factorization.

142349076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439365 (or 439354 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 142349076 is about 11931.0132008979. The cubic root of 142349076 is about 522.1374984597.

The spelling of 142349076 in words is "one hundred forty-two million, three hundred forty-nine thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 439349 878698 1318047 1757396 2636094 3954141 5272188 7908282 11862423 15816564 23724846 35587269 47449692 71174538 142349076