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230543778 = 2338423963
BaseRepresentation
bin11011011110111…
…01000110100010
3121001210211121110
431233131012202
5433004400103
634513204150
75466406203
oct1557350642
9531724543
10230543778
11109154a53
1265260656
13389bc94a
14228935aa
151538e403
hexdbdd1a2

230543778 has 8 divisors (see below), whose sum is σ = 461087568. Its totient is φ = 76847924.

The previous prime is 230543771. The next prime is 230543791. The reversal of 230543778 is 877345032.

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

230543778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (230543771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19211976 + ... + 19211987.

It is an arithmetic number, because the mean of its divisors is an integer number (57635946).

Almost surely, 2230543778 is an apocalyptic number.

230543778 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.

230543778 is a wasteful number, since it uses less digits than its factorization.

230543778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38423968.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 230543778 is about 15183.6681338865. The cubic root of 230543778 is about 613.1750407378.

The spelling of 230543778 in words is "two hundred thirty million, five hundred forty-three thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 38423963 76847926 115271889 230543778