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40980915 = 32529311013
BaseRepresentation
bin1001110001010…
…1000110110011
32212010001020200
42130111012303
540442342130
64022210243
71005221613
oct234250663
985101220
1040980915
1121150628
1211883983
13864b181
14562aa43
1538e7760
hex27151b3

40980915 has 48 divisors (see below), whose sum is σ = 75928320. Its totient is φ = 20401920.

The previous prime is 40980911. The next prime is 40980937. The reversal of 40980915 is 51908904.

40980915 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 40980915 - 22 = 40980911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40980915.

It is not an unprimeable number, because it can be changed into a prime (40980911) 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 47 ways as a sum of consecutive naturals, for example, 39949 + ... + 40961.

It is an arithmetic number, because the mean of its divisors is an integer number (1581840).

Almost surely, 240980915 is an apocalyptic number.

40980915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40980915 is a deficient number, since it is larger than the sum of its proper divisors (34947405).

40980915 is a wasteful number, since it uses less digits than its factorization.

40980915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 40980915 is about 6401.6337758419. The cubic root of 40980915 is about 344.7682122986.

The spelling of 40980915 in words is "forty million, nine hundred eighty thousand, nine hundred fifteen".

Divisors: 1 3 5 9 15 29 31 45 87 93 145 155 261 279 435 465 899 1013 1305 1395 2697 3039 4495 5065 8091 9117 13485 15195 29377 31403 40455 45585 88131 94209 146885 157015 264393 282627 440655 471045 910687 1321965 1413135 2732061 4553435 8196183 13660305 40980915