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53212260444 = 22372081304411
BaseRepresentation
bin110001100011101100…
…101010100001011100
312002100110020220112220
4301203230222201130
51332434314313234
640240111225340
73562435515360
oct614354524134
9162313226486
1053212260444
1120626a2a952
12a390818250
135030411c55
14280b1cb2a0
1515b68b5a49
hexc63b2a85c

53212260444 has 48 divisors (see below), whose sum is σ = 141968015616. Its totient is φ = 15196147200.

The previous prime is 53212260433. The next prime is 53212260449. The reversal of 53212260444 is 44406221235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53212260449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22599 + ... + 327009.

It is an arithmetic number, because the mean of its divisors is an integer number (2957666992).

Almost surely, 253212260444 is an apocalyptic number.

It is an amenable number.

53212260444 is an abundant number, since it is smaller than the sum of its proper divisors (88755755172).

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

53212260444 is a wasteful number, since it uses less digits than its factorization.

53212260444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306506 (or 306504 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 53212260444 its reverse (44406221235), we get a palindrome (97618481679).

The spelling of 53212260444 in words is "fifty-three billion, two hundred twelve million, two hundred sixty thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2081 4162 6243 8324 12486 14567 24972 29134 43701 58268 87402 174804 304411 608822 913233 1217644 1826466 2130877 3652932 4261754 6392631 8523508 12785262 25570524 633479291 1266958582 1900437873 2533917164 3800875746 4434355037 7601751492 8868710074 13303065111 17737420148 26606130222 53212260444