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397952485 = 5734932579
BaseRepresentation
bin10111101110000…
…100010111100101
31000201211002011221
4113232010113211
51303333434420
6103253300341
712601353220
oct2756042745
91021732157
10397952485
111946a7657
12b13346b1
13645a5658
143abd05b7
1524e0bcaa
hex17b845e5

397952485 has 16 divisors (see below), whose sum is σ = 547344000. Its totient is φ = 272091456.

The previous prime is 397952459. The next prime is 397952521. The reversal of 397952485 is 584259793.

It is not a de Polignac number, because 397952485 - 211 = 397950437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 28504.

It is an arithmetic number, because the mean of its divisors is an integer number (34209000).

Almost surely, 2397952485 is an apocalyptic number.

397952485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

397952485 is a deficient number, since it is larger than the sum of its proper divisors (149391515).

397952485 is a wasteful number, since it uses less digits than its factorization.

397952485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32940.

The product of its digits is 2721600, while the sum is 52.

The square root of 397952485 is about 19948.7464518450. The cubic root of 397952485 is about 735.5469635605.

The spelling of 397952485 in words is "three hundred ninety-seven million, nine hundred fifty-two thousand, four hundred eighty-five".

Divisors: 1 5 7 35 349 1745 2443 12215 32579 162895 228053 1140265 11370071 56850355 79590497 397952485