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230232440 = 2355755811
BaseRepresentation
bin11011011100100…
…01000101111000
3121001020000112102
431232101011320
5432414414230
634502402532
75463641414
oct1556210570
9531200472
10230232440
11108a62049
1265130448
1338911019
1422811d44
151532c045
hexdb91178

230232440 has 16 divisors (see below), whose sum is σ = 518023080. Its totient is φ = 92092960.

The previous prime is 230232419. The next prime is 230232451. The reversal of 230232440 is 44232032.

230232440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2877866 + ... + 2877945.

Almost surely, 2230232440 is an apocalyptic number.

230232440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230232440 is an abundant number, since it is smaller than the sum of its proper divisors (287790640).

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

230232440 is a wasteful number, since it uses less digits than its factorization.

230232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755822 (or 5755818 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 230232440 is about 15173.4122727882. The cubic root of 230232440 is about 612.8988955117.

Adding to 230232440 its reverse (44232032), we get a palindrome (274464472).

The spelling of 230232440 in words is "two hundred thirty million, two hundred thirty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5755811 11511622 23023244 28779055 46046488 57558110 115116220 230232440