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142461369 = 3329181943
BaseRepresentation
bin10000111110111…
…00100110111001
3100221001210021000
420133130212321
5242432230434
622045235213
73346621161
oct1037344671
9327053230
10142461369
1173463376
123b862b09
132368c78b
1414cc55a1
15c790b99
hex87dc9b9

142461369 has 16 divisors (see below), whose sum is σ = 218332800. Its totient is φ = 91698768.

The previous prime is 142461367. The next prime is 142461383. The reversal of 142461369 is 963164241.

142461369 is a `hidden beast` number, since 14 + 24 + 613 + 6 + 9 = 666.

It is not a de Polignac number, because 142461369 - 21 = 142461367 is a prime.

It is a super-2 number, since 2×1424613692 = 40590483314708322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142461367) 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, 90189 + ... + 91754.

It is an arithmetic number, because the mean of its divisors is an integer number (13645800).

Almost surely, 2142461369 is an apocalyptic number.

It is an amenable number.

142461369 is a deficient number, since it is larger than the sum of its proper divisors (75871431).

142461369 is a wasteful number, since it uses less digits than its factorization.

142461369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181981 (or 181975 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 142461369 is about 11935.7182021025. The cubic root of 142461369 is about 522.2747595669.

The spelling of 142461369 in words is "one hundred forty-two million, four hundred sixty-one thousand, three hundred sixty-nine".

Divisors: 1 3 9 27 29 87 261 783 181943 545829 1637487 4912461 5276347 15829041 47487123 142461369