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142153051 = 473024533
BaseRepresentation
bin10000111100100…
…01010101011011
3100220111010022211
420132101111123
5242342344201
622034455551
73344165245
oct1036212533
9326433284
10142153051
1173272767
123b7345b7
13235b2341
1414c45095
15c72e651
hex879155b

142153051 has 4 divisors (see below), whose sum is σ = 145177632. Its totient is φ = 139128472.

The previous prime is 142153043. The next prime is 142153069. The reversal of 142153051 is 150351241.

It is a happy number.

142153051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150351241 = 469132051.

It is a cyclic number.

It is not a de Polignac number, because 142153051 - 23 = 142153043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142153751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512220 + ... + 1512313.

It is an arithmetic number, because the mean of its divisors is an integer number (36294408).

Almost surely, 2142153051 is an apocalyptic number.

142153051 is a deficient number, since it is larger than the sum of its proper divisors (3024581).

142153051 is an equidigital number, since it uses as much as digits as its factorization.

142153051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024580.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 142153051 is about 11922.7954356351. The cubic root of 142153051 is about 521.8977146268.

The spelling of 142153051 in words is "one hundred forty-two million, one hundred fifty-three thousand, fifty-one".

Divisors: 1 47 3024533 142153051