Search a number
-
+
42907269 = 3172967433
BaseRepresentation
bin1010001110101…
…1011010000101
32222201220201010
42203223122011
541441013034
64131352433
71030464036
oct243533205
988656633
1042907269
1122246959
1212452719
138b73c22
1459aca8d
153b783e9
hex28eb685

42907269 has 32 divisors (see below), whose sum is σ = 63745920. Its totient is φ = 25546752.

The previous prime is 42907261. The next prime is 42907289. The reversal of 42907269 is 96270924.

42907269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42907269 - 23 = 42907261 is a prime.

It is a super-2 number, since 2×429072692 = 3682067466076722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42907261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98877 + ... + 99309.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 242907269 is an apocalyptic number.

It is an amenable number.

42907269 is a deficient number, since it is larger than the sum of its proper divisors (20838651).

42907269 is a wasteful number, since it uses less digits than its factorization.

42907269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 42907269 is about 6550.3640356853. The cubic root of 42907269 is about 350.0877847833.

The spelling of 42907269 in words is "forty-two million, nine hundred seven thousand, two hundred sixty-nine".

Divisors: 1 3 17 29 51 67 87 201 433 493 1139 1299 1479 1943 3417 5829 7361 12557 22083 29011 33031 37671 87033 99093 213469 493187 640407 841319 1479561 2523957 14302423 42907269