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12290983 = 1729107233
BaseRepresentation
bin101110111000…
…101110100111
3212010110001121
4232320232213
511121302413
61115234411
7206320525
oct56705647
925113047
1012290983
116a35441
124148a07
132714593
1418bd315
15112bb8d
hexbb8ba7

12290983 has 16 divisors (see below), whose sum is σ = 13646880. Its totient is φ = 11017216.

The previous prime is 12290981. The next prime is 12290987. The reversal of 12290983 is 38909221.

It is not a de Polignac number, because 12290983 - 21 = 12290981 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 (12290981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52635 + ... + 52867.

It is an arithmetic number, because the mean of its divisors is an integer number (852930).

Almost surely, 212290983 is an apocalyptic number.

12290983 is a deficient number, since it is larger than the sum of its proper divisors (1355897).

12290983 is a wasteful number, since it uses less digits than its factorization.

12290983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12290983 is about 3505.8498256486. The cubic root of 12290983 is about 230.7786026137.

It can be divided in two parts, 12290 and 983, that multiplied together give a triangular number (12081070 = T4915).

The spelling of 12290983 in words is "twelve million, two hundred ninety thousand, nine hundred eighty-three".

Divisors: 1 17 29 107 233 493 1819 3103 3961 6757 24931 52751 114869 423827 722999 12290983