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27801053 = 729136951
BaseRepresentation
bin110101000001…
…1010111011101
31221022102212122
41222003113131
524104113203
62431512325
7455206430
oct152032735
957272778
1027801053
1114769385
1293886a5
1359b5137
143999817
152692538
hex1a835dd

27801053 has 8 divisors (see below), whose sum is σ = 32868480. Its totient is φ = 23007600.

The previous prime is 27801049. The next prime is 27801083. The reversal of 27801053 is 35010872.

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

It is not a de Polignac number, because 27801053 - 22 = 27801049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27801083) 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, 68273 + ... + 68678.

It is an arithmetic number, because the mean of its divisors is an integer number (4108560).

Almost surely, 227801053 is an apocalyptic number.

It is an amenable number.

27801053 is a deficient number, since it is larger than the sum of its proper divisors (5067427).

27801053 is a wasteful number, since it uses less digits than its factorization.

27801053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136987.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 27801053 is about 5272.6703860568. The cubic root of 27801053 is about 302.9379962953.

The spelling of 27801053 in words is "twenty-seven million, eight hundred one thousand, fifty-three".

Divisors: 1 7 29 203 136951 958657 3971579 27801053