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142461406 = 2193369071
BaseRepresentation
bin10000111110111…
…00100111011110
3100221001210022101
420133130213132
5242432231111
622045235314
73346621243
oct1037344736
9327053271
10142461406
11734633aa
123b862b3a
132368c7b9
1414cc55ca
15c790bc1
hex87dc9de

142461406 has 8 divisors (see below), whose sum is σ = 214799904. Its totient is φ = 70861440.

The previous prime is 142461391. The next prime is 142461421. The reversal of 142461406 is 604164241.

It is an interprime number because it is at equal distance from previous prime (142461391) and next prime (142461421).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184150 + ... + 184921.

It is an arithmetic number, because the mean of its divisors is an integer number (26849988).

Almost surely, 2142461406 is an apocalyptic number.

142461406 is a deficient number, since it is larger than the sum of its proper divisors (72338498).

142461406 is a wasteful number, since it uses less digits than its factorization.

142461406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369266.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 142461406 is about 11935.7197520719. The cubic root of 142461406 is about 522.2748047819.

The spelling of 142461406 in words is "one hundred forty-two million, four hundred sixty-one thousand, four hundred six".

Divisors: 1 2 193 386 369071 738142 71230703 142461406