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230230431988 = 2257557607997
BaseRepresentation
bin1101011001101011001…
…1011001100011110100
3211000021011011202010121
43112122303121203310
512233002442310423
6253433313101324
722430216245144
oct3263263314364
9730234152117
10230230431988
1189705093197
1238753857844
131893136505b
14b200d90924
155ec741945d
hex359acd98f4

230230431988 has 6 divisors (see below), whose sum is σ = 402903255986. Its totient is φ = 115115215992.

The previous prime is 230230431931. The next prime is 230230431989. The reversal of 230230431988 is 889134032032.

It can be written as a sum of positive squares in only one way, i.e., 171452308624 + 58778123364 = 414068^2 + 242442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230230431989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28778803995 + ... + 28778804002.

Almost surely, 2230230431988 is an apocalyptic number.

It is an amenable number.

230230431988 is a deficient number, since it is larger than the sum of its proper divisors (172672823998).

230230431988 is a wasteful number, since it uses less digits than its factorization.

230230431988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57557608001 (or 57557607999 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 230230431988 in words is "two hundred thirty billion, two hundred thirty million, four hundred thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 57557607997 115115215994 230230431988