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40912207 = 725571499
BaseRepresentation
bin1001110000010…
…0010101001111
32211222112222221
42130010111033
540433142312
64020520211
71004514400
oct234042517
984875887
1040912207
1121103a46
1211850067
138625b0b
14560d9a7
1538d2207
hex270454f

40912207 has 12 divisors (see below), whose sum is σ = 47709000. Its totient is φ = 34981296.

The previous prime is 40912189. The next prime is 40912213. The reversal of 40912207 is 70221904.

It is not a de Polignac number, because 40912207 - 211 = 40910159 is a prime.

It is a super-2 number, since 2×409122072 = 3347617363221698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40912007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26544 + ... + 28042.

It is an arithmetic number, because the mean of its divisors is an integer number (3975750).

Almost surely, 240912207 is an apocalyptic number.

40912207 is a deficient number, since it is larger than the sum of its proper divisors (6796793).

40912207 is a wasteful number, since it uses less digits than its factorization.

40912207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 40912207 is about 6396.2650820616. The cubic root of 40912207 is about 344.5754267448.

The spelling of 40912207 in words is "forty million, nine hundred twelve thousand, two hundred seven".

Divisors: 1 7 49 557 1499 3899 10493 27293 73451 834943 5844601 40912207