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99980041 = 7441641
BaseRepresentation
bin1011111010110…
…01001100001001
320222010111211111
411331121030021
5201043330131
613530530321
72322550000
oct575311411
9228114744
1099980041
1151488537
12295969a1
13179376b5
14d3c7c37
158b9dab1
hex5f59309

99980041 has 10 divisors (see below), whose sum is σ = 116639242. Its totient is φ = 85695120.

The previous prime is 99980003. The next prime is 99980047. The reversal of 99980041 is 14008999.

Subtracting from 99980041 its sum of digits (40), we obtain a square (99980001 = 99992).

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 60025 = 9996^2 + 245^2 .

It is not a de Polignac number, because 99980041 - 215 = 99947273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99979976 and 99980003.

It is not an unprimeable number, because it can be changed into a prime (99980047) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18420 + ... + 23221.

Almost surely, 299980041 is an apocalyptic number.

It is an amenable number.

99980041 is a deficient number, since it is larger than the sum of its proper divisors (16659201).

99980041 is an frugal number, since it uses more digits than its factorization.

99980041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41669 (or 41648 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 99980041 is about 9999.0020001998. The cubic root of 99980041 is about 464.1280008161.

The spelling of 99980041 in words is "ninety-nine million, nine hundred eighty thousand, forty-one".