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53391479760 = 243251743611663
BaseRepresentation
bin110001101110011000…
…010101001111010000
312002210221111012020100
4301232120111033100
51333321204323020
640305552412400
73600043042563
oct615630251720
9162727435210
1053391479760
1120709109a93
12a420847100
13505b5a1698
142826d204da
1515c74b7a90
hexc6e6153d0

53391479760 has 480 divisors, whose sum is σ = 197572497408. Its totient is φ = 12866273280.

The previous prime is 53391479753. The next prime is 53391479767. The reversal of 53391479760 is 6797419335.

It is a happy number.

53391479760 is a `hidden beast` number, since 533 + 9 + 1 + 47 + 9 + 7 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (53391479753) and next prime (53391479767).

It is a super-2 number, since 2×533914797602 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53391479697 and 53391479706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53391479767) 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 95 ways as a sum of consecutive naturals, for example, 32104689 + ... + 32106351.

Almost surely, 253391479760 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 53391479760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98786248704).

53391479760 is an abundant number, since it is smaller than the sum of its proper divisors (144181017648).

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

53391479760 is a wasteful number, since it uses less digits than its factorization.

53391479760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 53391479760 in words is "fifty-three billion, three hundred ninety-one million, four hundred seventy-nine thousand, seven hundred sixty".