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40422980 = 22513155473
BaseRepresentation
bin1001101000110…
…0111001000100
32211001200220102
42122030321010
540322013410
64002223232
71000406153
oct232147104
984050812
1040422980
11208aa424
1211654b18
1384b4230
14552359a
1538372a5
hex268ce44

40422980 has 24 divisors (see below), whose sum is σ = 91418712. Its totient is φ = 14925312.

The previous prime is 40422973. The next prime is 40422989. The reversal of 40422980 is 8922404.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 33154564 = 2696^2 + 5758^2 .

It is not an unprimeable number, because it can be changed into a prime (40422989) 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 7 ways as a sum of consecutive naturals, for example, 77477 + ... + 77996.

It is an arithmetic number, because the mean of its divisors is an integer number (3809113).

Almost surely, 240422980 is an apocalyptic number.

It is an amenable number.

40422980 is an abundant number, since it is smaller than the sum of its proper divisors (50995732).

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

40422980 is a wasteful number, since it uses less digits than its factorization.

40422980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155495 (or 155493 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40422980 is about 6357.9068882770. The cubic root of 40422980 is about 343.1964410641.

The spelling of 40422980 in words is "forty million, four hundred twenty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 155473 310946 621892 777365 1554730 2021149 3109460 4042298 8084596 10105745 20211490 40422980