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20754166053 = 38977730959
BaseRepresentation
bin10011010101000010…
…110111000100100101
31222120101121212120210
4103111002313010211
5320001031303203
613311225450033
71333210333515
oct232502670445
958511555523
1020754166053
118890205155
124032640919
131c59a0073a
14100c51d845
1581708c803
hex4d50b7125

20754166053 has 8 divisors (see below), whose sum is σ = 27983145600. Its totient is φ = 13680648608.

The previous prime is 20754166039. The next prime is 20754166057. The reversal of 20754166053 is 35066145702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20754166053 - 28 = 20754165797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20754166057) 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, 38865213 + ... + 38865746.

It is an arithmetic number, because the mean of its divisors is an integer number (3497893200).

Almost surely, 220754166053 is an apocalyptic number.

It is an amenable number.

20754166053 is a deficient number, since it is larger than the sum of its proper divisors (7228979547).

20754166053 is an equidigital number, since it uses as much as digits as its factorization.

20754166053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77731051.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 20754166053 in words is "twenty billion, seven hundred fifty-four million, one hundred sixty-six thousand, fifty-three".

Divisors: 1 3 89 267 77730959 233192877 6918055351 20754166053