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5142190187 = 29177316903
BaseRepresentation
bin1001100100111111…
…11001100001101011
3111021100221022211102
410302133321201223
541012400041222
62210130552015
7241266616061
oct46237714153
914240838742
105142190187
1121a96a5662
12bb613860b
1363c454ab4
1436ad16031
15201691d92
hex1327f986b

5142190187 has 4 divisors (see below), whose sum is σ = 5319507120. Its totient is φ = 4964873256.

The previous prime is 5142190171. The next prime is 5142190199. The reversal of 5142190187 is 7810912415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7810912415 = 51562182483.

It is a cyclic number.

It is not a de Polignac number, because 5142190187 - 24 = 5142190171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5142190187.

It is not an unprimeable number, because it can be changed into a prime (5142190087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88658423 + ... + 88658480.

It is an arithmetic number, because the mean of its divisors is an integer number (1329876780).

Almost surely, 25142190187 is an apocalyptic number.

5142190187 is a deficient number, since it is larger than the sum of its proper divisors (177316933).

5142190187 is a wasteful number, since it uses less digits than its factorization.

5142190187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177316932.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 5142190187 is about 71709.0662817471. The cubic root of 5142190187 is about 1726.0341274687.

The spelling of 5142190187 in words is "five billion, one hundred forty-two million, one hundred ninety thousand, one hundred eighty-seven".

Divisors: 1 29 177316903 5142190187