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2004148331 = 9720661323
BaseRepresentation
bin111011101110100…
…1110000001101011
312011200011021122222
41313131032001223
513101030221311
6530511504255
7100443660023
oct16735160153
95150137588
102004148331
11939320339
1247b22808b
1325c29a5b3
14150258a83
15bae31adb
hex7774e06b

2004148331 has 4 divisors (see below), whose sum is σ = 2024809752. Its totient is φ = 1983486912.

The previous prime is 2004148319. The next prime is 2004148337. The reversal of 2004148331 is 1338414002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2004148331 - 222 = 1999954027 is a prime.

It is a super-2 number, since 2×20041483312 = 8033221065300171122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2004148331.

It is not an unprimeable number, because it can be changed into a prime (2004148337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10330565 + ... + 10330758.

It is an arithmetic number, because the mean of its divisors is an integer number (506202438).

Almost surely, 22004148331 is an apocalyptic number.

2004148331 is a deficient number, since it is larger than the sum of its proper divisors (20661421).

2004148331 is an equidigital number, since it uses as much as digits as its factorization.

2004148331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20661420.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2004148331 is about 44767.7152756314. The cubic root of 2004148331 is about 1260.7915432477.

The spelling of 2004148331 in words is "two billion, four million, one hundred forty-eight thousand, three hundred thirty-one".

Divisors: 1 97 20661323 2004148331