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231214310460 = 22355733120533
BaseRepresentation
bin1101011101010101110…
…0100110010000111100
3211002210201111221200000
43113111130212100330
512242011330413320
6254115101034300
722463464132410
oct3272534462074
9732721457600
10231214310460
118a06a4a56a1
1238989255990
1318a5a149273
14b295902d40
1560339b3c90
hex35d572643c

231214310460 has 288 divisors, whose sum is σ = 833781591552. Its totient is φ = 52686754560.

The previous prime is 231214310387. The next prime is 231214310473. The reversal of 231214310460 is 64013412132.

It is a happy number.

It is a super-2 number, since 2×2312143104602 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11250354 + ... + 11270886.

Almost surely, 2231214310460 is an apocalyptic number.

231214310460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231214310460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416890795776).

231214310460 is an abundant number, since it is smaller than the sum of its proper divisors (602567281092).

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

231214310460 is a wasteful number, since it uses less digits than its factorization.

231214310460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20895 (or 20881 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 231214310460 its reverse (64013412132), we get a palindrome (295227722592).

The spelling of 231214310460 in words is "two hundred thirty-one billion, two hundred fourteen million, three hundred ten thousand, four hundred sixty".