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42764169 = 3719710337
BaseRepresentation
bin1010001100100…
…0011110001001
32222110122102010
42203020132021
541421423134
64124330133
71026326610
oct243103611
988418363
1042764169
1122159398
12123a3949
138b23a56
145972877
153b4ace9
hex28c8789

42764169 has 16 divisors (see below), whose sum is σ = 65501568. Its totient is φ = 24310272.

The previous prime is 42764167. The next prime is 42764171. The reversal of 42764169 is 96146724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42764167) and next prime (42764171).

It is not a de Polignac number, because 42764169 - 21 = 42764167 is a prime.

It is a super-2 number, since 2×427641692 = 3657548300521122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42764167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (4093848).

Almost surely, 242764169 is an apocalyptic number.

It is an amenable number.

42764169 is a deficient number, since it is larger than the sum of its proper divisors (22737399).

42764169 is a wasteful number, since it uses less digits than its factorization.

42764169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10544.

The product of its digits is 72576, while the sum is 39.

The square root of 42764169 is about 6539.4318560560. The cubic root of 42764169 is about 349.6981588136.

The spelling of 42764169 in words is "forty-two million, seven hundred sixty-four thousand, one hundred sixty-nine".

Divisors: 1 3 7 21 197 591 1379 4137 10337 31011 72359 217077 2036389 6109167 14254723 42764169