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142045634 = 2197947317
BaseRepresentation
bin10000111011101…
…11000111000010
3100220021122222102
420131313013002
5242330430014
622032310402
73343240133
oct1035670702
9326248872
10142045634
11731a9a95
123b6a2402
1323575493
1414c17c8a
15c70c8de
hex87771c2

142045634 has 16 divisors (see below), whose sum is σ = 227126400. Its totient is φ = 66431664.

The previous prime is 142045621. The next prime is 142045649. The reversal of 142045634 is 436540241.

142045634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142045597 and 142045606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20657 + ... + 26660.

It is an arithmetic number, because the mean of its divisors is an integer number (14195400).

Almost surely, 2142045634 is an apocalyptic number.

142045634 is a deficient number, since it is larger than the sum of its proper divisors (85080766).

142045634 is a wasteful number, since it uses less digits than its factorization.

142045634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47417.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 142045634 is about 11918.2898941081. The cubic root of 142045634 is about 521.7662253318.

Adding to 142045634 its reverse (436540241), we get a palindrome (578585875).

The spelling of 142045634 in words is "one hundred forty-two million, forty-five thousand, six hundred thirty-four".

Divisors: 1 2 19 38 79 158 1501 3002 47317 94634 899023 1798046 3738043 7476086 71022817 142045634