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10501945 = 54151229
BaseRepresentation
bin101000000011…
…111100111001
3201202112221221
4220003330321
510142030240
61013032041
7155156626
oct50037471
921675857
1010501945
115a232a3
123625621
13223918c
14157534d
15dc6a4a
hexa03f39

10501945 has 8 divisors (see below), whose sum is σ = 12909960. Its totient is φ = 8196480.

The previous prime is 10501921. The next prime is 10501949. The reversal of 10501945 is 54910501.

10501945 = 22912 + 22922.

10501945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 210681 + 10291264 = 459^2 + 3208^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10501945 - 25 = 10501913 is a prime.

It is a super-2 number, since 2×105019452 = 220581697566050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10501949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25410 + ... + 25819.

It is an arithmetic number, because the mean of its divisors is an integer number (1613745).

Almost surely, 210501945 is an apocalyptic number.

10501945 is the 2292-nd centered square number.

It is an amenable number.

10501945 is a deficient number, since it is larger than the sum of its proper divisors (2408015).

10501945 is an equidigital number, since it uses as much as digits as its factorization.

10501945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51275.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 10501945 is about 3240.6704553225. The cubic root of 10501945 is about 218.9894770560.

The spelling of 10501945 in words is "ten million, five hundred one thousand, nine hundred forty-five".

Divisors: 1 5 41 205 51229 256145 2100389 10501945