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397120410 = 23254412449
BaseRepresentation
bin10111101010111…
…001001110011010
31000200020210210100
4113222321032122
51303130323120
6103223400230
712561316311
oct2752711632
91020223710
10397120410
11194189495
12b0bb3076
13643739bb
143aa55278
1524ce5490
hex17ab939a

397120410 has 24 divisors (see below), whose sum is σ = 1032513300. Its totient is φ = 105898752.

The previous prime is 397120397. The next prime is 397120417. The reversal of 397120410 is 14021793.

It can be written as a sum of positive squares in 2 ways, for example, as 396925929 + 194481 = 19923^2 + 441^2 .

It is not an unprimeable number, because it can be changed into a prime (397120417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2206135 + ... + 2206314.

Almost surely, 2397120410 is an apocalyptic number.

397120410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397120410 is an abundant number, since it is smaller than the sum of its proper divisors (635392890).

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

397120410 is a wasteful number, since it uses less digits than its factorization.

397120410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412462 (or 4412459 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 397120410 is about 19927.8802184276. The cubic root of 397120410 is about 735.0339565042.

The spelling of 397120410 in words is "three hundred ninety-seven million, one hundred twenty thousand, four hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4412449 8824898 13237347 22062245 26474694 39712041 44124490 66186735 79424082 132373470 198560205 397120410