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142103331 = 3215789259
BaseRepresentation
bin10000111100001…
…01001100100011
3100220101121010100
420132011030203
5242334301311
622033433443
73343600266
oct1036051443
9326347110
10142103331
1173239377
123b70b883
1323595816
1414c30cdd
15c71ea56
hex8785323

142103331 has 6 divisors (see below), whose sum is σ = 205260380. Its totient is φ = 94735548.

The previous prime is 142103321. The next prime is 142103359. The reversal of 142103331 is 133301241.

It is not a de Polignac number, because 142103331 - 210 = 142102307 is a prime.

It is a super-2 number, since 2×1421033312 = 40386713362591122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142103321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7894621 + ... + 7894638.

Almost surely, 2142103331 is an apocalyptic number.

142103331 is a deficient number, since it is larger than the sum of its proper divisors (63157049).

142103331 is a wasteful number, since it uses less digits than its factorization.

142103331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15789265 (or 15789262 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 142103331 is about 11920.7101717977. The cubic root of 142103331 is about 521.8368605448.

Adding to 142103331 its reverse (133301241), we get a palindrome (275404572).

The spelling of 142103331 in words is "one hundred forty-two million, one hundred three thousand, three hundred thirty-one".

Divisors: 1 3 9 15789259 47367777 142103331