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42232020 = 22354316369
BaseRepresentation
bin1010000100011…
…0100011010100
32221110121102220
42201012203110
541302411040
64105102340
71021652265
oct241064324
987417386
1042232020
11219255a6
12121879b0
13899877c
14587496c
153a932d0
hex28468d4

42232020 has 48 divisors (see below), whose sum is σ = 121007040. Its totient is φ = 10999296.

The previous prime is 42231989. The next prime is 42232037. The reversal of 42232020 is 2023224.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5605 + ... + 10764.

It is an arithmetic number, because the mean of its divisors is an integer number (2520980).

Almost surely, 242232020 is an apocalyptic number.

It is an amenable number.

42232020 is an abundant number, since it is smaller than the sum of its proper divisors (78775020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42232020 is a wasteful number, since it uses less digits than its factorization.

42232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16424 (or 16422 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42232020 is about 6498.6167758993. The cubic root of 42232020 is about 348.2415748990.

Adding to 42232020 its reverse (2023224), we get a palindrome (44255244).

The spelling of 42232020 in words is "forty-two million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 16369 32738 49107 65476 81845 98214 163690 196428 245535 327380 491070 703867 982140 1407734 2111601 2815468 3519335 4223202 7038670 8446404 10558005 14077340 21116010 42232020