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3171491492 = 221360990221
BaseRepresentation
bin1011110100001001…
…0001111010100100
322012000201110102212
42331002101322210
522443400211432
61242412022552
7141410142611
oct27502217244
98160643385
103171491492
111388251554
12746161a58
133b70996b0
142212c7508
1513866b2b2
hexbd091ea4

3171491492 has 12 divisors (see below), whose sum is σ = 5977041756. Its totient is φ = 1463765280.

The previous prime is 3171491483. The next prime is 3171491507. The reversal of 3171491492 is 2941941713.

It can be written as a sum of positive squares in 2 ways, for example, as 252682816 + 2918808676 = 15896^2 + 54026^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30495059 + ... + 30495162.

It is an arithmetic number, because the mean of its divisors is an integer number (498086813).

Almost surely, 23171491492 is an apocalyptic number.

It is an amenable number.

3171491492 is a deficient number, since it is larger than the sum of its proper divisors (2805550264).

3171491492 is a wasteful number, since it uses less digits than its factorization.

3171491492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60990238 (or 60990236 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 3171491492 is about 56315.9967682363. The cubic root of 3171491492 is about 1469.2234459529.

The spelling of 3171491492 in words is "three billion, one hundred seventy-one million, four hundred ninety-one thousand, four hundred ninety-two".

Divisors: 1 2 4 13 26 52 60990221 121980442 243960884 792872873 1585745746 3171491492