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308480672 = 259640021
BaseRepresentation
bin10010011000110…
…000101010100000
3210111110102221002
4102120300222200
51112432340142
650335451132
710434020363
oct2230605240
9714412832
10308480672
11149147105
1287386aa8
134bba9c56
142cd800da
151c136a32
hex12630aa0

308480672 has 12 divisors (see below), whose sum is σ = 607321386. Its totient is φ = 154240320.

The previous prime is 308480651. The next prime is 308480681. The reversal of 308480672 is 276084803.

It can be written as a sum of positive squares in only one way, i.e., 259983376 + 48497296 = 16124^2 + 6964^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4819979 + ... + 4820042.

Almost surely, 2308480672 is an apocalyptic number.

308480672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

308480672 is a deficient number, since it is larger than the sum of its proper divisors (298840714).

308480672 is an equidigital number, since it uses as much as digits as its factorization.

308480672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640031 (or 9640023 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 308480672 is about 17563.6178505455. The cubic root of 308480672 is about 675.6824716984.

The spelling of 308480672 in words is "three hundred eight million, four hundred eighty thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 9640021 19280042 38560084 77120168 154240336 308480672