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231061214 = 2183163097
BaseRepresentation
bin11011100010110…
…11011011011110
3121002210010101202
431301123123132
5433122424324
634532235502
75503662566
oct1561333336
9532703352
10231061214
1110947878a
126546bb92
1338b41317
1422989da6
15154428ae
hexdc5b6de

231061214 has 8 divisors (see below), whose sum is σ = 346786608. Its totient is φ = 115465680.

The previous prime is 231061213. The next prime is 231061249. The reversal of 231061214 is 412160132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231061211) 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, 27887 + ... + 35210.

It is an arithmetic number, because the mean of its divisors is an integer number (43348326).

Almost surely, 2231061214 is an apocalyptic number.

231061214 is a deficient number, since it is larger than the sum of its proper divisors (115725394).

231061214 is a wasteful number, since it uses less digits than its factorization.

231061214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64930.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 231061214 is about 15200.6978129295. The cubic root of 231061214 is about 613.6334377939.

The spelling of 231061214 in words is "two hundred thirty-one million, sixty-one thousand, two hundred fourteen".

Divisors: 1 2 1831 3662 63097 126194 115530607 231061214