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3081219929 = 11330788819
BaseRepresentation
bin1011011110100111…
…1010111101011001
321221201212012010122
42313221322331121
522302243014204
61225425123025
7136232636324
oct26751727531
97851765118
103081219929
1113412a5157
1271ba89475
133a1480c78
142133097bb
151307890be
hexb7a7af59

3081219929 has 8 divisors (see below), whose sum is σ = 3118647840. Its totient is φ = 3043970496.

The previous prime is 3081219923. The next prime is 3081219941. The reversal of 3081219929 is 9299121803.

It is a happy number.

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

It is not a de Polignac number, because 3081219929 - 212 = 3081215833 is a prime.

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 3081219929.

It is not an unprimeable number, because it can be changed into a prime (3081219923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9719 + ... + 79100.

It is an arithmetic number, because the mean of its divisors is an integer number (389830980).

Almost surely, 23081219929 is an apocalyptic number.

It is an amenable number.

3081219929 is a deficient number, since it is larger than the sum of its proper divisors (37427911).

3081219929 is a wasteful number, since it uses less digits than its factorization.

3081219929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89239.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 3081219929 is about 55508.7374113301. The cubic root of 3081219929 is about 1455.1493379702.

The spelling of 3081219929 in words is "three billion, eighty-one million, two hundred nineteen thousand, nine hundred twenty-nine".

Divisors: 1 113 307 34691 88819 10036547 27267433 3081219929