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3081465140 = 2251343275623
BaseRepresentation
bin1011011110101011…
…0110110100110100
321221202022122111112
42313222312310310
522302323341030
61225434254152
7136235010245
oct26752666464
97852278445
103081465140
111341452406
1271bb87358
133a1538770
14213370ccc
151307d6a95
hexb7ab6d34

3081465140 has 48 divisors (see below), whose sum is σ = 7130944128. Its totient is φ = 1111307904.

The previous prime is 3081465133. The next prime is 3081465173. The reversal of 3081465140 is 415641803.

It is a junction number, because it is equal to n+sod(n) for n = 3081465097 and 3081465106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126632 + ... + 148991.

It is an arithmetic number, because the mean of its divisors is an integer number (148561336).

Almost surely, 23081465140 is an apocalyptic number.

It is an amenable number.

3081465140 is an abundant number, since it is smaller than the sum of its proper divisors (4049478988).

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

3081465140 is a wasteful number, since it uses less digits than its factorization.

3081465140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275688 (or 275686 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 3081465140 is about 55510.9461277684. The cubic root of 3081465140 is about 1455.1879383912.

The spelling of 3081465140 in words is "three billion, eighty-one million, four hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 43 52 65 86 130 172 215 260 430 559 860 1118 2236 2795 5590 11180 275623 551246 1102492 1378115 2756230 3583099 5512460 7166198 11851789 14332396 17915495 23703578 35830990 47407156 59258945 71661980 118517890 154073257 237035780 308146514 616293028 770366285 1540732570 3081465140