Search a number
-
+
2930844531 = 32014748491
BaseRepresentation
bin1010111010110001…
…0010001101110011
321120020220022212110
42232230102031303
522000244011111
61202454100403
7132425524146
oct25654221563
97506808773
102930844531
11127442696a
1269964a703
13379280244
141db36405d
151224835a6
hexaeb12373

2930844531 has 8 divisors (see below), whose sum is σ = 3908067264. Its totient is φ = 1953759080.

The previous prime is 2930844517. The next prime is 2930844541. The reversal of 2930844531 is 1354480392.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2930844531 - 210 = 2930843507 is a prime.

It is a super-2 number, since 2×29308445312 = 17179699329785219922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2930844531.

It is not an unprimeable number, because it can be changed into a prime (2930844541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36196 + ... + 84686.

It is an arithmetic number, because the mean of its divisors is an integer number (488508408).

Almost surely, 22930844531 is an apocalyptic number.

2930844531 is a deficient number, since it is larger than the sum of its proper divisors (977222733).

2930844531 is a wasteful number, since it uses less digits than its factorization.

2930844531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68641.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2930844531 is about 54137.2748760039. The cubic root of 2930844531 is about 1431.0811474468.

The spelling of 2930844531 in words is "two billion, nine hundred thirty million, eight hundred forty-four thousand, five hundred thirty-one".

Divisors: 1 3 20147 48491 60441 145473 976948177 2930844531