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231348468 = 223131483003
BaseRepresentation
bin11011100101000…
…01100011110100
3121010022201102210
431302201203310
5433211122333
634542333420
75506300221
oct1562414364
9533281383
10231348468
1110965458a
126558a270
1338c11cb0
1422a22948
151549ca63
hexdca18f4

231348468 has 24 divisors (see below), whose sum is σ = 581337568. Its totient is φ = 71184096.

The previous prime is 231348463. The next prime is 231348497. The reversal of 231348468 is 864843132.

It is a happy number.

231348468 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2313484682 = 107044227291894048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231348463) 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, 741346 + ... + 741657.

Almost surely, 2231348468 is an apocalyptic number.

It is an amenable number.

231348468 is an abundant number, since it is smaller than the sum of its proper divisors (349989100).

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

231348468 is a wasteful number, since it uses less digits than its factorization.

231348468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483023 (or 1483021 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 231348468 is about 15210.1435890658. The cubic root of 231348468 is about 613.8876210347.

The spelling of 231348468 in words is "two hundred thirty-one million, three hundred forty-eight thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1483003 2966006 4449009 5932012 8898018 17796036 19279039 38558078 57837117 77116156 115674234 231348468