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385478472 = 23316061603
BaseRepresentation
bin10110111110011…
…110111101001000
3222212100100001110
4112332132331020
51242140302342
6102130050320
712360340641
oct2676367510
9885310043
10385478472
11188657755
12a91199a0
1361b28992
14392a46c8
1523c95c9c
hex16f9ef48

385478472 has 16 divisors (see below), whose sum is σ = 963696240. Its totient is φ = 128492816.

The previous prime is 385478453. The next prime is 385478473. The reversal of 385478472 is 274874583.

It is not an unprimeable number, because it can be changed into a prime (385478473) 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, 8030778 + ... + 8030825.

It is an arithmetic number, because the mean of its divisors is an integer number (60231015).

Almost surely, 2385478472 is an apocalyptic number.

It is an amenable number.

385478472 is an abundant number, since it is smaller than the sum of its proper divisors (578217768).

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

385478472 is a wasteful number, since it uses less digits than its factorization.

385478472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061612 (or 16061608 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 385478472 is about 19633.6056800579. The cubic root of 385478472 is about 727.7798764908.

The spelling of 385478472 in words is "three hundred eighty-five million, four hundred seventy-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 16061603 32123206 48184809 64246412 96369618 128492824 192739236 385478472