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53422232020 = 2252397212343
BaseRepresentation
bin110001110000001101…
…101001000111010100
312002220002100120101221
4301300031221013110
51333402042411040
640313011500124
73600565323403
oct616015510724
9162802316357
1053422232020
1120724503683
12a42abb7644
135064a7aba1
14282b04763a
1515ca03e74a
hexc703691d4

53422232020 has 72 divisors (see below), whose sum is σ = 118293243264. Its totient is φ = 20227451904.

The previous prime is 53422232009. The next prime is 53422232021. The reversal of 53422232020 is 2023222435.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53422232021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4321969 + ... + 4334311.

It is an arithmetic number, because the mean of its divisors is an integer number (1642961712).

Almost surely, 253422232020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53422232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59146621632).

53422232020 is an abundant number, since it is smaller than the sum of its proper divisors (64871011244).

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

53422232020 is a wasteful number, since it uses less digits than its factorization.

53422232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569 (or 12470 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 53422232020 its reverse (2023222435), we get a palindrome (55445454455).

The spelling of 53422232020 in words is "fifty-three billion, four hundred twenty-two million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 97 115 194 230 388 460 485 970 1940 2231 4462 8924 9409 11155 12343 18818 22310 24686 37636 44620 47045 49372 61715 94090 123430 188180 216407 246860 283889 432814 567778 865628 1082035 1135556 1197271 1419445 2164070 2394542 2838890 4328140 4789084 5677780 5986355 11972710 23945420 27537233 55074466 110148932 116135287 137686165 232270574 275372330 464541148 550744660 580676435 1161352870 2322705740 2671111601 5342223202 10684446404 13355558005 26711116010 53422232020