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142602042 = 23114745971
BaseRepresentation
bin10000111111111…
…10111100111010
3100221022221020010
420133332330322
5243001231132
622052242350
73351045252
oct1037767472
9327287203
10142602042
117354a030
123b9103b6
132370b80b
1414d20962
15c7bc6cc
hex87fef3a

142602042 has 32 divisors (see below), whose sum is σ = 317758464. Its totient is φ = 42292400.

The previous prime is 142602023. The next prime is 142602043. The reversal of 142602042 is 240206241.

It is not an unprimeable number, because it can be changed into a prime (142602043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19884 + ... + 26087.

It is an arithmetic number, because the mean of its divisors is an integer number (9929952).

Almost surely, 2142602042 is an apocalyptic number.

142602042 is an abundant number, since it is smaller than the sum of its proper divisors (175156422).

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

142602042 is a wasteful number, since it uses less digits than its factorization.

142602042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46034.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142602042 is about 11941.6096904898. The cubic root of 142602042 is about 522.4466091672.

Adding to 142602042 its reverse (240206241), we get a palindrome (382808283).

The spelling of 142602042 in words is "one hundred forty-two million, six hundred two thousand, forty-two".

Divisors: 1 2 3 6 11 22 33 47 66 94 141 282 517 1034 1551 3102 45971 91942 137913 275826 505681 1011362 1517043 2160637 3034086 4321274 6481911 12963822 23767007 47534014 71301021 142602042