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53215431192 = 233107211219
BaseRepresentation
bin110001100011111000…
…110000101000011000
312002100200020000000000
4301203320300220120
51332441122244232
640240303213000
73562504462500
oct614370605030
9162320200000
1053215431192
11206287a6100
12a3918a7160
135030c82231
14280b7b4a00
1515b6ce027c
hexc63e30a18

53215431192 has 792 divisors, whose sum is σ = 201441573900. Its totient is φ = 13094706240.

The previous prime is 53215431149. The next prime is 53215431209. The reversal of 53215431192 is 29113451235.

It is a happy number.

53215431192 is a `hidden beast` number, since 5 + 3 + 21 + 543 + 1 + 1 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (792).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 197 ways as a sum of consecutive naturals, for example, 2800812159 + ... + 2800812177.

Almost surely, 253215431192 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 53215431192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100720786950).

53215431192 is an abundant number, since it is smaller than the sum of its proper divisors (148226142708).

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

53215431192 is a wasteful number, since it uses less digits than its factorization.

53215431192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 42 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 53215431192 in words is "fifty-three billion, two hundred fifteen million, four hundred thirty-one thousand, one hundred ninety-two".