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38230890 = 2351274363
BaseRepresentation
bin1001000111010…
…1101101101010
32122221022220220
42101311231222
534241342030
63443230510
7642646215
oct221655552
978838826
1038230890
111a642485
1210978436
137bc7539
14511277c
153552a10
hex2475b6a

38230890 has 16 divisors (see below), whose sum is σ = 91754208. Its totient is φ = 10194896.

The previous prime is 38230883. The next prime is 38230891. The reversal of 38230890 is 9803283.

It is not an unprimeable number, because it can be changed into a prime (38230891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637152 + ... + 637211.

It is an arithmetic number, because the mean of its divisors is an integer number (5734638).

Almost surely, 238230890 is an apocalyptic number.

38230890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38230890 is an abundant number, since it is smaller than the sum of its proper divisors (53523318).

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

38230890 is a wasteful number, since it uses less digits than its factorization.

38230890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274373.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 38230890 is about 6183.1132934793. The cubic root of 38230890 is about 336.8770842025.

The spelling of 38230890 in words is "thirty-eight million, two hundred thirty thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1274363 2548726 3823089 6371815 7646178 12743630 19115445 38230890