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230221432 = 2374111097
BaseRepresentation
bin11011011100011…
…10011001111000
3121001012110102201
431232032121320
5432414041212
634502235544
75463564340
oct1556163170
9531173381
10230221432
11108a54851
1265125bb4
1338908ccc
142280bd20
1515328b57
hexdb8e678

230221432 has 16 divisors (see below), whose sum is σ = 493331760. Its totient is φ = 98666304.

The previous prime is 230221427. The next prime is 230221477. The reversal of 230221432 is 234122032.

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, 2055493 + ... + 2055604.

It is an arithmetic number, because the mean of its divisors is an integer number (30833235).

Almost surely, 2230221432 is an apocalyptic number.

It is an amenable number.

230221432 is an abundant number, since it is smaller than the sum of its proper divisors (263110328).

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

230221432 is a wasteful number, since it uses less digits than its factorization.

230221432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111110 (or 4111106 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 230221432 is about 15173.0495286874. The cubic root of 230221432 is about 612.8891272697.

Adding to 230221432 its reverse (234122032), we get a palindrome (464343464).

The spelling of 230221432 in words is "two hundred thirty million, two hundred twenty-one thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 4111097 8222194 16444388 28777679 32888776 57555358 115110716 230221432