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20153024055 = 3251493005671
BaseRepresentation
bin10010110001001101…
…101011111000110111
31221000111110200210100
4102301031223320313
5312233133232210
613131433125143
71312260610113
oct226115537067
957014420710
1020153024055
11860194728a
123aa52597b3
131b922c5108
14d9275a743
157ce3e65c0
hex4b136be37

20153024055 has 24 divisors (see below), whose sum is σ = 35166362400. Its totient is φ = 10676139840.

The previous prime is 20153024029. The next prime is 20153024057. The reversal of 20153024055 is 55042035102.

It is a happy number.

20153024055 is a `hidden beast` number, since 201 + 53 + 0 + 2 + 405 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2k-20153024055 is a prime.

It is a super-2 number, since 2×201530240552 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153024057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1496131 + ... + 1509540.

It is an arithmetic number, because the mean of its divisors is an integer number (1465265100).

Almost surely, 220153024055 is an apocalyptic number.

20153024055 is a deficient number, since it is larger than the sum of its proper divisors (15013338345).

20153024055 is a wasteful number, since it uses less digits than its factorization.

20153024055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005831 (or 3005828 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20153024055 its reverse (55042035102), we get a palindrome (75195059157).

The spelling of 20153024055 in words is "twenty billion, one hundred fifty-three million, twenty-four thousand, fifty-five".

Divisors: 1 3 5 9 15 45 149 447 745 1341 2235 6705 3005671 9017013 15028355 27051039 45085065 135255195 447844979 1343534937 2239224895 4030604811 6717674685 20153024055