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142922826 = 23319139301
BaseRepresentation
bin10001000010011…
…01010001001010
3100221221020021000
420201031101022
5243042012301
622103155430
73353552424
oct1041152112
9327836230
10142922826
1173749042
123ba45b76
13237c1827
1414da5814
15c832786
hex884d44a

142922826 has 32 divisors (see below), whose sum is σ = 334324800. Its totient is φ = 45133200.

The previous prime is 142922809. The next prime is 142922827. The reversal of 142922826 is 628229241.

142922826 is a `hidden beast` number, since 1 + 429 + 228 + 2 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142922827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68625 + ... + 70676.

It is an arithmetic number, because the mean of its divisors is an integer number (10447650).

Almost surely, 2142922826 is an apocalyptic number.

142922826 is an abundant number, since it is smaller than the sum of its proper divisors (191401974).

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

142922826 is a wasteful number, since it uses less digits than its factorization.

142922826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139331 (or 139325 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 142922826 is about 11955.0335005804. The cubic root of 142922826 is about 522.8380645321.

The spelling of 142922826 in words is "one hundred forty-two million, nine hundred twenty-two thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 139301 278602 417903 835806 1253709 2507418 2646719 3761127 5293438 7522254 7940157 15880314 23820471 47640942 71461413 142922826