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53211003144 = 23313170548087
BaseRepresentation
bin110001100011100111…
…110111100100001000
312002100100220000212020
4301203213313210020
51332434004100034
640240024244440
73562422030645
oct614347674410
9162310800766
1053211003144
1120626251262
12a390310720
1350300918a0
14280ad80dcc
1515b6718249
hexc639f7908

53211003144 has 32 divisors (see below), whose sum is σ = 143260393920. Its totient is φ = 16372616256.

The previous prime is 53211003113. The next prime is 53211003149. The reversal of 53211003144 is 44130011235.

It is a happy number.

53211003144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53211003149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85273732 + ... + 85274355.

It is an arithmetic number, because the mean of its divisors is an integer number (4476887310).

Almost surely, 253211003144 is an apocalyptic number.

It is an amenable number.

53211003144 is an abundant number, since it is smaller than the sum of its proper divisors (90049390776).

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

53211003144 is a wasteful number, since it uses less digits than its factorization.

53211003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170548109 (or 170548105 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 53211003144 its reverse (44130011235), we get a palindrome (97341014379).

The spelling of 53211003144 in words is "fifty-three billion, two hundred eleven million, three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 170548087 341096174 511644261 682192348 1023288522 1364384696 2046577044 2217125131 4093154088 4434250262 6651375393 8868500524 13302750786 17737001048 26605501572 53211003144