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231030211002 = 2390742453181
BaseRepresentation
bin1101011100101001111…
…0010100000110111010
3211002022220002201200120
43113022132110012322
512241122213223002
6254044523114110
722456100251323
oct3271236240672
9732286081616
10231030211002
1189a85592a88
1238937672936
1318a2ac6b486
14b27929d44a
15602274acbc
hex35ca7941ba

231030211002 has 16 divisors (see below), whose sum is σ = 462569871072. Its totient is φ = 76925162160.

The previous prime is 231030210977. The next prime is 231030211037. The reversal of 231030211002 is 200112030132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21221149 + ... + 21232032.

It is an arithmetic number, because the mean of its divisors is an integer number (28910616942).

Almost surely, 2231030211002 is an apocalyptic number.

231030211002 is an abundant number, since it is smaller than the sum of its proper divisors (231539660070).

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

231030211002 is a wasteful number, since it uses less digits than its factorization.

231030211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42454093.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 231030211002 its reverse (200112030132), we get a palindrome (431142241134).

The spelling of 231030211002 in words is "two hundred thirty-one billion, thirty million, two hundred eleven thousand, two".

Divisors: 1 2 3 6 907 1814 2721 5442 42453181 84906362 127359543 254719086 38505035167 77010070334 115515105501 231030211002