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1230313254 = 23205052209
BaseRepresentation
bin100100101010101…
…0001011100100110
310011202001101111120
41021111101130212
510004430011004
6322025514410
742326330052
oct11125213446
93152041446
101230313254
11581530615
122a4042a06
13167b78c11
14b9580c62
15730273d9
hex49551726

1230313254 has 8 divisors (see below), whose sum is σ = 2460626520. Its totient is φ = 410104416.

The previous prime is 1230313247. The next prime is 1230313283. The reversal of 1230313254 is 4523130321.

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

1230313254 is an admirable number.

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, 102526099 + ... + 102526110.

It is an arithmetic number, because the mean of its divisors is an integer number (307578315).

Almost surely, 21230313254 is an apocalyptic number.

1230313254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1230313254 is a wasteful number, since it uses less digits than its factorization.

1230313254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205052214.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1230313254 is about 35075.8215014274. The cubic root of 1230313254 is about 1071.5322194942.

Adding to 1230313254 its reverse (4523130321), we get a palindrome (5753443575).

The spelling of 1230313254 in words is "one billion, two hundred thirty million, three hundred thirteen thousand, two hundred fifty-four".

Divisors: 1 2 3 6 205052209 410104418 615156627 1230313254