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142552814 = 2791018933
BaseRepresentation
bin10000111111100…
…10111011101110
3100221020102200212
420133302323232
5242443142224
622051222422
73350451605
oct1037627356
9327212625
10142552814
1173516048
123b8a7a12
13236c22a1
1414d0aa3c
15c7acd0e
hex87f2eee

142552814 has 16 divisors (see below), whose sum is σ = 218704320. Its totient is φ = 69669600.

The previous prime is 142552811. The next prime is 142552831. The reversal of 142552814 is 418255241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142552811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11492 + ... + 20424.

It is an arithmetic number, because the mean of its divisors is an integer number (13669020).

Almost surely, 2142552814 is an apocalyptic number.

142552814 is a deficient number, since it is larger than the sum of its proper divisors (76151506).

142552814 is a wasteful number, since it uses less digits than its factorization.

142552814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115.

The product of its digits is 12800, while the sum is 32.

The square root of 142552814 is about 11939.5483164147. The cubic root of 142552814 is about 522.3864838904.

The spelling of 142552814 in words is "one hundred forty-two million, five hundred fifty-two thousand, eight hundred fourteen".

Divisors: 1 2 79 101 158 202 7979 8933 15958 17866 705707 902233 1411414 1804466 71276407 142552814