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53022021157 = 7171777250739
BaseRepresentation
bin110001011000010110…
…111101011000100101
312001212012021202022101
4301120112331120211
51332042114134112
640205153532101
73554635513030
oct613026753045
9161765252271
1053022021157
11205396042a6
12a338b74031
134cccb94621
1427cdc2a017
1515a4d38757
hexc585bd625

53022021157 has 16 divisors (see below), whose sum is σ = 64197463680. Its totient is φ = 42749826048.

The previous prime is 53022021139. The next prime is 53022021209. The reversal of 53022021157 is 75112022035.

53022021157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53022021157 - 211 = 53022019109 is a prime.

It is a super-2 number, since 2×530220211572 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53022021127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86094 + ... + 336832.

It is an arithmetic number, because the mean of its divisors is an integer number (4012341480).

Almost surely, 253022021157 is an apocalyptic number.

It is an amenable number.

53022021157 is a deficient number, since it is larger than the sum of its proper divisors (11175442523).

53022021157 is a wasteful number, since it uses less digits than its factorization.

53022021157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252540.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 53022021157 in words is "fifty-three billion, twenty-two million, twenty-one thousand, one hundred fifty-seven".

Divisors: 1 7 17 119 1777 12439 30209 211463 250739 1755173 4262563 29837941 445563203 3118942421 7574574451 53022021157