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63230141440 = 210512349637
BaseRepresentation
bin111010111000110011…
…110110010000000000
320001012121122222210101
4322320303312100000
52013443404011230
645014133212144
74365621222454
oct727063662000
9201177588711
1063230141440
11248a7848144
1210307791054
135c68a2019b
1430bb886664
1519a1106aca
hexeb8cf6400

63230141440 has 44 divisors (see below), whose sum is σ = 151678253916. Its totient is φ = 25292054528.

The previous prime is 63230141437. The next prime is 63230141449. The reversal of 63230141440 is 4414103236.

It can be written as a sum of positive squares in 2 ways, for example, as 39400662016 + 23829479424 = 198496^2 + 154368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63230141399 and 63230141408.

It is not an unprimeable number, because it can be changed into a prime (63230141449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6169699 + ... + 6179938.

Almost surely, 263230141440 is an apocalyptic number.

It is an amenable number.

63230141440 is an abundant number, since it is smaller than the sum of its proper divisors (88448112476).

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

63230141440 is a wasteful number, since it uses less digits than its factorization.

63230141440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349662 (or 12349644 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 63230141440 its reverse (4414103236), we get a palindrome (67644244676).

The spelling of 63230141440 in words is "sixty-three billion, two hundred thirty million, one hundred forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2560 5120 12349637 24699274 49398548 61748185 98797096 123496370 197594192 246992740 395188384 493985480 790376768 987970960 1580753536 1975941920 3161507072 3951883840 6323014144 7903767680 12646028288 15807535360 31615070720 63230141440