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53538352220 = 2253186352181
BaseRepresentation
bin110001110111001000…
…100110110001011100
312010012011212002101002
4301313020212301130
51334121304232340
640332320405432
73603505325303
oct616710466134
9163164762332
1053538352220
1120784005491
12a461a76878
135082b46b72
14283c63343a
1515d532a715
hexc77226c5c

53538352220 has 24 divisors (see below), whose sum is σ = 116057332608. Its totient is φ = 20724523200.

The previous prime is 53538352201. The next prime is 53538352223. The reversal of 53538352220 is 2225383535.

53538352220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53538352223) 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, 43175471 + ... + 43176710.

It is an arithmetic number, because the mean of its divisors is an integer number (4835722192).

Almost surely, 253538352220 is an apocalyptic number.

It is an amenable number.

53538352220 is an abundant number, since it is smaller than the sum of its proper divisors (62518980388).

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

53538352220 is a wasteful number, since it uses less digits than its factorization.

53538352220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86352221 (or 86352219 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 53538352220 in words is "fifty-three billion, five hundred thirty-eight million, three hundred fifty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 86352181 172704362 345408724 431760905 863521810 1727043620 2676917611 5353835222 10707670444 13384588055 26769176110 53538352220