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142102023 = 37411511093
BaseRepresentation
bin10000111100001…
…00111000000111
3100220101112022220
420132010320013
5242334231043
622033423423
73343563420
oct1036047007
9326345286
10142102023
1173238398
123b70ab73
132359504b
1414c30647
15c71e483
hex8784e07

142102023 has 32 divisors (see below), whose sum is σ = 223491072. Its totient is φ = 78624000.

The previous prime is 142102013. The next prime is 142102049. The reversal of 142102023 is 320201241.

It is not a de Polignac number, because 142102023 - 28 = 142101767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142101993 and 142102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142102013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129465 + ... + 130557.

It is an arithmetic number, because the mean of its divisors is an integer number (6984096).

Almost surely, 2142102023 is an apocalyptic number.

142102023 is a deficient number, since it is larger than the sum of its proper divisors (81389049).

142102023 is a wasteful number, since it uses less digits than its factorization.

142102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142102023 is about 11920.6553091682. The cubic root of 142102023 is about 521.8352594453.

Adding to 142102023 its reverse (320201241), we get a palindrome (462303264).

The spelling of 142102023 in words is "one hundred forty-two million, one hundred two thousand, twenty-three".

Divisors: 1 3 7 21 41 123 151 287 453 861 1057 1093 3171 3279 6191 7651 18573 22953 43337 44813 130011 134439 165043 313691 495129 941073 1155301 3465903 6766763 20300289 47367341 142102023