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3081065538 = 23513510923
BaseRepresentation
bin1011011110100101…
…0101010001000010
321221201120100100110
42313221111101002
522302223044123
61225421532150
7136231424235
oct26751252102
97851510313
103081065538
1113411aa161
1271ba14056
133a1428905
142132a941c
15130758493
hexb7a55442

3081065538 has 8 divisors (see below), whose sum is σ = 6162131088. Its totient is φ = 1027021844.

The previous prime is 3081065489. The next prime is 3081065539. The reversal of 3081065538 is 8355601803.

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

3081065538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3081065496 and 3081065505.

It is not an unprimeable number, because it can be changed into a prime (3081065539) 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, 256755456 + ... + 256755467.

It is an arithmetic number, because the mean of its divisors is an integer number (770266386).

Almost surely, 23081065538 is an apocalyptic number.

3081065538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3081065538 is a wasteful number, since it uses less digits than its factorization.

3081065538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513510928.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 3081065538 is about 55507.3467029365. The cubic root of 3081065538 is about 1455.1250331257.

The spelling of 3081065538 in words is "three billion, eighty-one million, sixty-five thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 513510923 1027021846 1540532769 3081065538