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142297048 = 2317787131
BaseRepresentation
bin10000111101101…
…00011111011000
3100220202102212001
420132310133120
5242412001143
622041530344
73345335125
oct1036643730
9326672761
10142297048
1173360973
123b7a39b4
1323632a4a
1414c8174c
15c75c14d
hex87b47d8

142297048 has 8 divisors (see below), whose sum is σ = 266806980. Its totient is φ = 71148520.

The previous prime is 142297039. The next prime is 142297049. The reversal of 142297048 is 840792241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 142296998 and 142297016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142297049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8893558 + ... + 8893573.

Almost surely, 2142297048 is an apocalyptic number.

It is an amenable number.

142297048 is a deficient number, since it is larger than the sum of its proper divisors (124509932).

142297048 is a wasteful number, since it uses less digits than its factorization.

142297048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17787137 (or 17787133 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 142297048 is about 11928.8326335815. The cubic root of 142297048 is about 522.0738776742.

The spelling of 142297048 in words is "one hundred forty-two million, two hundred ninety-seven thousand, forty-eight".

Divisors: 1 2 4 8 17787131 35574262 71148524 142297048