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424328157 = 321137311491
BaseRepresentation
bin11001010010101…
…011101111011101
31002120110002210200
4121102223233131
51332112000112
6110034454113
713341505221
oct3122535735
91076402720
10424328157
111a8582030
12ba134339
1369baba66
14404d8781
15273bbcdc
hex194abbdd

424328157 has 24 divisors (see below), whose sum is σ = 670489248. Its totient is φ = 256456800.

The previous prime is 424328141. The next prime is 424328161. The reversal of 424328157 is 751823424.

It is a happy number.

It is not a de Polignac number, because 424328157 - 24 = 424328141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424328117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31182 + ... + 42672.

It is an arithmetic number, because the mean of its divisors is an integer number (27937052).

Almost surely, 2424328157 is an apocalyptic number.

It is an amenable number.

424328157 is a deficient number, since it is larger than the sum of its proper divisors (246161091).

424328157 is a wasteful number, since it uses less digits than its factorization.

424328157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11881 (or 11878 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 424328157 is about 20599.2270971510. The cubic root of 424328157 is about 751.4509139881.

It can be divided in two parts, 4243 and 28157, that added together give a square (32400 = 1802).

The spelling of 424328157 in words is "four hundred twenty-four million, three hundred twenty-eight thousand, one hundred fifty-seven".

Divisors: 1 3 9 11 33 99 373 1119 3357 4103 11491 12309 34473 36927 103419 126401 379203 1137609 4286143 12858429 38575287 47147573 141442719 424328157