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142046205 = 3572946649
BaseRepresentation
bin10000111011101…
…11001111111101
3100220021200202120
420131313033331
5242330434310
622032313153
73343241610
oct1035671775
9326250676
10142046205
11731aa464
123b6a27b9
1323575812
1414c18177
15c70cb70
hex87773fd

142046205 has 32 divisors (see below), whose sum is σ = 268704000. Its totient is φ = 62694912.

The previous prime is 142046197. The next prime is 142046239. The reversal of 142046205 is 502640241.

It is not a de Polignac number, because 142046205 - 23 = 142046197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 20280 + ... + 26369.

It is an arithmetic number, because the mean of its divisors is an integer number (8397000).

Almost surely, 2142046205 is an apocalyptic number.

142046205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142046205 is a deficient number, since it is larger than the sum of its proper divisors (126657795).

142046205 is a wasteful number, since it uses less digits than its factorization.

142046205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46693.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142046205 is about 11918.3138488630. The cubic root of 142046205 is about 521.7669244689.

Adding to 142046205 its reverse (502640241), we get a palindrome (644686446).

The spelling of 142046205 in words is "one hundred forty-two million, forty-six thousand, two hundred five".

Divisors: 1 3 5 7 15 21 29 35 87 105 145 203 435 609 1015 3045 46649 139947 233245 326543 699735 979629 1352821 1632715 4058463 4898145 6764105 9469747 20292315 28409241 47348735 142046205