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890409052230 = 235199491487809
BaseRepresentation
bin11001111010100001000…
…00111110100001000110
310011010022010201110021120
430331100200332201012
5104042024204132410
61521014232054410
7121221111031455
oct14752040764106
93133263643246
10890409052230
11313690773885
12124698234406
1365c7175c599
143114b702b9c
151826551e570
hexcf5083e846

890409052230 has 32 divisors (see below), whose sum is σ = 2137090284000. Its totient is φ = 237430351872.

The previous prime is 890409052229. The next prime is 890409052261. The reversal of 890409052230 is 32250904098.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145435 + ... + 1342374.

It is an arithmetic number, because the mean of its divisors is an integer number (66784071375).

Almost surely, 2890409052230 is an apocalyptic number.

890409052230 is an abundant number, since it is smaller than the sum of its proper divisors (1246681231770).

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

890409052230 is a wasteful number, since it uses less digits than its factorization.

890409052230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507768.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 890409052230 in words is "eight hundred ninety billion, four hundred nine million, fifty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 19949 39898 59847 99745 119694 199490 299235 598470 1487809 2975618 4463427 7439045 8926854 14878090 22317135 44634270 29680301741 59360603482 89040905223 148401508705 178081810446 296803017410 445204526115 890409052230