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234031992 = 233232931447
BaseRepresentation
bin11011111001100…
…00101101111000
3121022101001112120
431330300231320
5434403010432
635120041240
75541145005
oct1574605570
9538331476
10234031992
11110117777
1266463220
133964158c
14231208ac
151582cc2c
hexdf30b78

234031992 has 64 divisors (see below), whose sum is σ = 613025280. Its totient is φ = 74312832.

The previous prime is 234031991. The next prime is 234032017. The reversal of 234031992 is 299130432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234031991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161013 + ... + 162459.

It is an arithmetic number, because the mean of its divisors is an integer number (9578520).

Almost surely, 2234031992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234031992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306512640).

234031992 is an abundant number, since it is smaller than the sum of its proper divisors (378993288).

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

234031992 is a wasteful number, since it uses less digits than its factorization.

234031992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 234031992 is about 15298.1041962722. The cubic root of 234031992 is about 616.2520964563.

The spelling of 234031992 in words is "two hundred thirty-four million, thirty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 293 552 586 879 1172 1447 1758 2344 2894 3516 4341 5788 6739 7032 8682 11576 13478 17364 20217 26956 33281 34728 40434 53912 66562 80868 99843 133124 161736 199686 266248 399372 423971 798744 847942 1271913 1695884 2543826 3391768 5087652 9751333 10175304 19502666 29253999 39005332 58507998 78010664 117015996 234031992