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397259130 = 23513241971
BaseRepresentation
bin10111101011011…
…011000101111010
31000200111212002010
4113223123011322
51303144243010
6103230350350
712562434612
oct2753330572
91020455063
10397259130
11194273734
12b105b3b6
13643c1b98
143aa8da42
1524d21620
hex17adb17a

397259130 has 16 divisors (see below), whose sum is σ = 953421984. Its totient is φ = 105935760.

The previous prime is 397259119. The next prime is 397259131. The reversal of 397259130 is 31952793.

It is not an unprimeable number, because it can be changed into a prime (397259131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6620956 + ... + 6621015.

It is an arithmetic number, because the mean of its divisors is an integer number (59588874).

Almost surely, 2397259130 is an apocalyptic number.

397259130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397259130 is an abundant number, since it is smaller than the sum of its proper divisors (556162854).

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

397259130 is a wasteful number, since it uses less digits than its factorization.

397259130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13241981.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 397259130 is about 19931.3604653571. The cubic root of 397259130 is about 735.1195325979.

The spelling of 397259130 in words is "three hundred ninety-seven million, two hundred fifty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 13241971 26483942 39725913 66209855 79451826 132419710 198629565 397259130