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12091616 = 25379997
BaseRepresentation
bin101110001000…
…000011100000
3211202022120122
4232020003200
511043412431
61111055412
7204530345
oct56100340
924668518
1012091616
116909679
124071568
132674904
14186a7cc
1510dca7b
hexb880e0

12091616 has 24 divisors (see below), whose sum is σ = 23892120. Its totient is φ = 6023808.

The previous prime is 12091591. The next prime is 12091621. The reversal of 12091616 is 61619021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11630 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (995505).

Almost surely, 212091616 is an apocalyptic number.

12091616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12091616 is a deficient number, since it is larger than the sum of its proper divisors (11800504).

12091616 is an equidigital number, since it uses as much as digits as its factorization.

12091616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12091616 is about 3477.3001020907. The cubic root of 12091616 is about 229.5240061401.

The spelling of 12091616 in words is "twelve million, ninety-one thousand, six hundred sixteen".

Divisors: 1 2 4 8 16 32 379 758 997 1516 1994 3032 3988 6064 7976 12128 15952 31904 377863 755726 1511452 3022904 6045808 12091616