Search a number
-
+
142032473557 = 1310925574889
BaseRepresentation
bin1000010001000111001…
…0111000110111010101
3111120121111011020022121
42010101302320313111
54311340303123212
6145125424455541
713155461051122
oct2042162706725
9446544136277
10142032473557
11552656a0657
122363a47a5b1
1310516999180
146c3553b749
153a6439ad07
hex2111cb8dd5

142032473557 has 4 divisors (see below), whose sum is σ = 152958048460. Its totient is φ = 131106898656.

The previous prime is 142032473533. The next prime is 142032473563. The reversal of 142032473557 is 755374230241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 755374230241 = 3522672144323.

It can be written as a sum of positive squares in 2 ways, for example, as 63188887876 + 78843585681 = 251374^2 + 280791^2 .

It is a cyclic number.

It is not a de Polignac number, because 142032473557 - 215 = 142032440789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142032473357) 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, 5462787432 + ... + 5462787457.

It is an arithmetic number, because the mean of its divisors is an integer number (38239512115).

Almost surely, 2142032473557 is an apocalyptic number.

It is an amenable number.

142032473557 is a deficient number, since it is larger than the sum of its proper divisors (10925574903).

142032473557 is a wasteful number, since it uses less digits than its factorization.

142032473557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10925574902.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 142032473557 in words is "one hundred forty-two billion, thirty-two million, four hundred seventy-three thousand, five hundred fifty-seven".

Divisors: 1 13 10925574889 142032473557