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142980555 = 3523939883
BaseRepresentation
bin10001000010110…
…11010111001011
3100222001011110010
420201123113023
5243100334210
622104323003
73354212634
oct1041332713
9328034403
10142980555
1173788453
123ba73463
1323811ba3
1414dbc88b
15c844920
hex885b5cb

142980555 has 16 divisors (see below), whose sum is σ = 229731840. Its totient is φ = 75935328.

The previous prime is 142980517. The next prime is 142980577. The reversal of 142980555 is 555089241.

142980555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142980555 - 27 = 142980427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16357 + ... + 23526.

It is an arithmetic number, because the mean of its divisors is an integer number (14358240).

Almost surely, 2142980555 is an apocalyptic number.

142980555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142980555 is a deficient number, since it is larger than the sum of its proper divisors (86751285).

142980555 is a wasteful number, since it uses less digits than its factorization.

142980555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40130.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 142980555 is about 11957.4476791663. The cubic root of 142980555 is about 522.9084495004.

The spelling of 142980555 in words is "one hundred forty-two million, nine hundred eighty thousand, five hundred fifty-five".

Divisors: 1 3 5 15 239 717 1195 3585 39883 119649 199415 598245 9532037 28596111 47660185 142980555