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27661036 = 22131927997
BaseRepresentation
bin110100110000…
…1001011101100
31221001022210211
41221201023230
524040123121
62424512204
7454054264
oct151411354
957038724
1027661036
1114683167
12931b664
1359664a0
1439607a4
152665ce1
hex1a612ec

27661036 has 24 divisors (see below), whose sum is σ = 54876080. Its totient is φ = 12094272.

The previous prime is 27661033. The next prime is 27661037. The reversal of 27661036 is 63016672.

It is a junction number, because it is equal to n+sod(n) for n = 27660989 and 27661007.

It is not an unprimeable number, because it can be changed into a prime (27661031) 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, 13011 + ... + 14986.

Almost surely, 227661036 is an apocalyptic number.

27661036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27661036 is a deficient number, since it is larger than the sum of its proper divisors (27215044).

27661036 is a wasteful number, since it uses less digits than its factorization.

27661036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28033 (or 28031 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 27661036 is about 5259.3760086155. The cubic root of 27661036 is about 302.4285686129.

The spelling of 27661036 in words is "twenty-seven million, six hundred sixty-one thousand, thirty-six".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 27997 55994 111988 363961 531943 727922 1063886 1455844 2127772 6915259 13830518 27661036