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48503139412 = 22721343632
BaseRepresentation
bin101101001011000000…
…110010110001010100
311122012021012202220211
4231023000302301110
51243313300430122
634140530335204
73334644611500
oct551300626124
9148167182824
1048503139412
111962a837592
12949772a504
13475c9096c0
1424c1a07300
1513dd26a877
hexb4b032c54

48503139412 has 54 divisors (see below), whose sum is σ = 106358182938. Its totient is φ = 19183657248.

The previous prime is 48503139401. The next prime is 48503139511. The reversal of 48503139412 is 21493130584.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33579096516 + 14924042896 = 183246^2 + 122164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11114743 + ... + 11119105.

Almost surely, 248503139412 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 48503139412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53179091469).

48503139412 is an abundant number, since it is smaller than the sum of its proper divisors (57855043526).

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

48503139412 is an equidigital number, since it uses as much as digits as its factorization.

48503139412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 48503139412 its reverse (21493130584), we get a palindrome (69996269996).

The spelling of 48503139412 in words is "forty-eight billion, five hundred three million, one hundred thirty-nine thousand, four hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 4363 8726 17452 30541 56719 61082 113438 122164 213787 226876 397033 427574 794066 855148 1588132 2779231 5558462 11116924 19035769 38071538 76143076 133250383 247464997 266500766 494929994 533001532 932752681 989859988 1732254979 1865505362 3464509958 3731010724 6929019916 12125784853 24251569706 48503139412