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427583157 = 3443321733
BaseRepresentation
bin11001011111000…
…110011010110101
31002210120110211020
4121133012122311
51333430130112
6110232331353
713411253061
oct3137063265
91083513736
10427583157
111aa3a5611
12bb243b59
136a77b4b1
1440b04aa1
152781148c
hex197c66b5

427583157 has 8 divisors (see below), whose sum is σ = 571399584. Its totient is φ = 284411088.

The previous prime is 427583131. The next prime is 427583159. The reversal of 427583157 is 751385724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427583157 - 27 = 427583029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427583159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159538 + ... + 162195.

It is an arithmetic number, because the mean of its divisors is an integer number (71424948).

Almost surely, 2427583157 is an apocalyptic number.

It is an amenable number.

427583157 is a deficient number, since it is larger than the sum of its proper divisors (143816427).

427583157 is a wasteful number, since it uses less digits than its factorization.

427583157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322179.

The product of its digits is 235200, while the sum is 42.

The square root of 427583157 is about 20678.0839779705. The cubic root of 427583157 is about 753.3674691287.

The spelling of 427583157 in words is "four hundred twenty-seven million, five hundred eighty-three thousand, one hundred fifty-seven".

Divisors: 1 3 443 1329 321733 965199 142527719 427583157