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396430347 = 3132143449
BaseRepresentation
bin10111101000010…
…000110000001011
31000121221202012110
4113220100300023
51302441232342
6103200513403
712552413415
oct2750206013
91017852173
10396430347
11193857a95
12b091b863
1364191891
143a9159b5
1524c0ac9c
hex17a10c0b

396430347 has 4 divisors (see below), whose sum is σ = 528573800. Its totient is φ = 264286896.

The previous prime is 396430343. The next prime is 396430351. The reversal of 396430347 is 743034693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743034693 = 3247678231.

It is an interprime number because it is at equal distance from previous prime (396430343) and next prime (396430351).

It is not a de Polignac number, because 396430347 - 22 = 396430343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396430343) 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, 66071722 + ... + 66071727.

It is an arithmetic number, because the mean of its divisors is an integer number (132143450).

Almost surely, 2396430347 is an apocalyptic number.

396430347 is a deficient number, since it is larger than the sum of its proper divisors (132143453).

396430347 is a wasteful number, since it uses less digits than its factorization.

396430347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132143452.

The product of its (nonzero) digits is 163296, while the sum is 39.

The square root of 396430347 is about 19910.5586812626. The cubic root of 396430347 is about 734.6079615992.

The spelling of 396430347 in words is "three hundred ninety-six million, four hundred thirty thousand, three hundred forty-seven".

Divisors: 1 3 132143449 396430347