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27985532 = 2210964187
BaseRepresentation
bin110101011000…
…0011001111100
31221122210221012
41222300121330
524131014112
62435454352
7456605321
oct152603174
957583835
1027985532
1114884a43
1294573b8
135a4b0b3
143a06b48
1526cc022
hex1ab067c

27985532 has 12 divisors (see below), whose sum is σ = 49424760. Its totient is φ = 13864176.

The previous prime is 27985523. The next prime is 27985541. The reversal of 27985532 is 23558972.

It is an interprime number because it is at equal distance from previous prime (27985523) and next prime (27985541).

It is a self number, because there is not a number n which added to its sum of digits gives 27985532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31658 + ... + 32529.

It is an arithmetic number, because the mean of its divisors is an integer number (4118730).

Almost surely, 227985532 is an apocalyptic number.

It is an amenable number.

27985532 is a deficient number, since it is larger than the sum of its proper divisors (21439228).

27985532 is a wasteful number, since it uses less digits than its factorization.

27985532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64300 (or 64298 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 27985532 is about 5290.1353479850. The cubic root of 27985532 is about 303.6065865466.

The spelling of 27985532 in words is "twenty-seven million, nine hundred eighty-five thousand, five hundred thirty-two".

Divisors: 1 2 4 109 218 436 64187 128374 256748 6996383 13992766 27985532