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40900925 = 5213317397
BaseRepresentation
bin1001110000000…
…1100100111101
32211221222112002
42130001210331
540432312200
64020352045
71004436452
oct234014475
984858462
1040900925
11210a651a
1211845625
138620940
145609829
1538cdbd5
hex270193d

40900925 has 24 divisors (see below), whose sum is σ = 54928776. Its totient is φ = 30032640.

The previous prime is 40900919. The next prime is 40900949. The reversal of 40900925 is 52900904.

It can be written as a sum of positive squares in 12 ways, for example, as 25745476 + 15155449 = 5074^2 + 3893^2 .

It is not a de Polignac number, because 40900925 - 220 = 39852349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102827 + ... + 103223.

It is an arithmetic number, because the mean of its divisors is an integer number (2288699).

Almost surely, 240900925 is an apocalyptic number.

It is an amenable number.

40900925 is a deficient number, since it is larger than the sum of its proper divisors (14027851).

40900925 is a wasteful number, since it uses less digits than its factorization.

40900925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 40900925 is about 6395.3831003311. The cubic root of 40900925 is about 344.5437503199.

The spelling of 40900925 in words is "forty million, nine hundred thousand, nine hundred twenty-five".

Divisors: 1 5 13 25 65 317 325 397 1585 1985 4121 5161 7925 9925 20605 25805 103025 125849 129025 629245 1636037 3146225 8180185 40900925