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2002425331 = 12721157411
BaseRepresentation
bin111011101011010…
…1001010111110011
312011112220202011011
41313112221113303
513100110102311
6530410531351
7100423222504
oct16726512763
95145822134
102002425331
11938353875
1247a736b57
1325bb1627a
1414dd2abab
15babe1321
hex775a95f3

2002425331 has 4 divisors (see below), whose sum is σ = 2002595464. Its totient is φ = 2002255200.

The previous prime is 2002425323. The next prime is 2002425343. The reversal of 2002425331 is 1335242002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1335242002 = 2667621001.

It is a cyclic number.

It is not a de Polignac number, because 2002425331 - 23 = 2002425323 is a prime.

It is a super-2 number, since 2×20024253312 = 8019414412460919122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002425301) 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, 65985 + ... + 91426.

It is an arithmetic number, because the mean of its divisors is an integer number (500648866).

Almost surely, 22002425331 is an apocalyptic number.

2002425331 is a deficient number, since it is larger than the sum of its proper divisors (170133).

2002425331 is a wasteful number, since it uses less digits than its factorization.

2002425331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170132.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2002425331 is about 44748.4673592292. The cubic root of 2002425331 is about 1260.4301317649.

Adding to 2002425331 its reverse (1335242002), we get a palindrome (3337667333).

The spelling of 2002425331 in words is "two billion, two million, four hundred twenty-five thousand, three hundred thirty-one".

Divisors: 1 12721 157411 2002425331