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340000231 = 1945739157
BaseRepresentation
bin10100010000111…
…111110111100111
3212200202210122011
4110100333313213
51144020001411
653423215051
711265645214
oct2420776747
9780683564
10340000231
11164a1522a
1295a47487
135559478c
1433226b0b
151ecb0c21
hex1443fde7

340000231 has 8 divisors (see below), whose sum is σ = 358687280. Its totient is φ = 321392448.

The previous prime is 340000217. The next prime is 340000253. The reversal of 340000231 is 132000043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340000231 - 227 = 205782503 is a prime.

It is a super-2 number, since 2×3400002312 = 231200314160106722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340000211) 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, 10896 + ... + 28261.

It is an arithmetic number, because the mean of its divisors is an integer number (44835910).

Almost surely, 2340000231 is an apocalyptic number.

340000231 is a deficient number, since it is larger than the sum of its proper divisors (18687049).

340000231 is a wasteful number, since it uses less digits than its factorization.

340000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39633.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 340000231 is about 18439.0951784517. The cubic root of 340000231 is about 697.9533627567.

Adding to 340000231 its reverse (132000043), we get a palindrome (472000274).

The spelling of 340000231 in words is "three hundred forty million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 19 457 8683 39157 743983 17894749 340000231