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409103901 = 3245455989
BaseRepresentation
bin11000011000100…
…110111000011101
31001111210122001100
4120120212320131
51314212311101
6104332303313
713065216513
oct3030467035
91044718040
10409103901
1119aa238a8
12b5011b39
13669ab31b
143c4944b3
1525db0e86
hex18626e1d

409103901 has 6 divisors (see below), whose sum is σ = 590927870. Its totient is φ = 272735928.

The previous prime is 409103879. The next prime is 409103927. The reversal of 409103901 is 109301904.

It can be written as a sum of positive squares in only one way, i.e., 341288676 + 67815225 = 18474^2 + 8235^2 .

It is not a de Polignac number, because 409103901 - 29 = 409103389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409103941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22727986 + ... + 22728003.

Almost surely, 2409103901 is an apocalyptic number.

It is an amenable number.

409103901 is a deficient number, since it is larger than the sum of its proper divisors (181823969).

409103901 is a wasteful number, since it uses less digits than its factorization.

409103901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45455995 (or 45455992 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 409103901 is about 20226.3170399359. The cubic root of 409103901 is about 742.3542631358.

The spelling of 409103901 in words is "four hundred nine million, one hundred three thousand, nine hundred one".

Divisors: 1 3 9 45455989 136367967 409103901