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234312340 = 22511715617
BaseRepresentation
bin11011111011101…
…01001010010100
3121022220022002211
431331311022110
5434440443330
635130043204
75543423233
oct1575651224
9538808084
10234312340
11110299369
1266579504
133970c072
1423194b1a
1515885d2a
hexdf75294

234312340 has 12 divisors (see below), whose sum is σ = 492055956. Its totient is φ = 93724928.

The previous prime is 234312317. The next prime is 234312367. The reversal of 234312340 is 43213432.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39765636 + 194546704 = 6306^2 + 13948^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5857789 + ... + 5857828.

It is an arithmetic number, because the mean of its divisors is an integer number (41004663).

Almost surely, 2234312340 is an apocalyptic number.

234312340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234312340 is an abundant number, since it is smaller than the sum of its proper divisors (257743616).

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

234312340 is a wasteful number, since it uses less digits than its factorization.

234312340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715626 (or 11715624 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 234312340 is about 15307.2642885657. The cubic root of 234312340 is about 616.4980686726.

Adding to 234312340 its reverse (43213432), we get a palindrome (277525772).

The spelling of 234312340 in words is "two hundred thirty-four million, three hundred twelve thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 11715617 23431234 46862468 58578085 117156170 234312340