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2080004031 = 32733015937
BaseRepresentation
bin111101111111010…
…0101011110111111
312100221220011010100
41323332211132333
513224440112111
6542221412143
7102354512460
oct17376453677
95327804110
102080004031
119781208a6
124a070a053
13271c09521
1415a362d67
15c2917756
hex7bfa57bf

2080004031 has 12 divisors (see below), whose sum is σ = 3433657552. Its totient is φ = 1188573696.

The previous prime is 2080004021. The next prime is 2080004071. The reversal of 2080004031 is 1304000802.

It is a happy number.

It is not a de Polignac number, because 2080004031 - 27 = 2080003903 is a prime.

It is a super-2 number, since 2×20800040312 = 8652833537952497922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2080003995 and 2080004013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080004021) 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, 16507906 + ... + 16508031.

Almost surely, 22080004031 is an apocalyptic number.

2080004031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2080004031 is a deficient number, since it is larger than the sum of its proper divisors (1353653521).

2080004031 is a wasteful number, since it uses less digits than its factorization.

2080004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33015950 (or 33015947 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2080004031 is about 45607.0611967051. The cubic root of 2080004031 is about 1276.5016843828.

Adding to 2080004031 its reverse (1304000802), we get a palindrome (3384004833).

The spelling of 2080004031 in words is "two billion, eighty million, four thousand, thirty-one".

Divisors: 1 3 7 9 21 63 33015937 99047811 231111559 297143433 693334677 2080004031