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27528030 = 2325305867
BaseRepresentation
bin110100100000…
…0101101011110
31220210120100200
41221000231132
524021344110
62422004330
7452661435
oct151005536
956716320
1027528030
11145a2242
1292766a6
13591aa9a
14392811c
15263b6c0
hex1a40b5e

27528030 has 24 divisors (see below), whose sum is σ = 71573112. Its totient is φ = 7340784.

The previous prime is 27528013. The next prime is 27528071. The reversal of 27528030 is 3082572.

It is a junction number, because it is equal to n+sod(n) for n = 27527985 and 27528003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152844 + ... + 153023.

It is an arithmetic number, because the mean of its divisors is an integer number (2982213).

Almost surely, 227528030 is an apocalyptic number.

27528030 is an abundant number, since it is smaller than the sum of its proper divisors (44045082).

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

27528030 is a wasteful number, since it uses less digits than its factorization.

27528030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305880 (or 305877 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 27528030 is about 5246.7161158195. The cubic root of 27528030 is about 301.9430546256.

The spelling of 27528030 in words is "twenty-seven million, five hundred twenty-eight thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 305867 611734 917601 1529335 1835202 2752803 3058670 4588005 5505606 9176010 13764015 27528030