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12400083 = 321377787
BaseRepresentation
bin101111010011…
…010111010011
3212022222201100
4233103113103
511133300313
61121435443
7210253563
oct57232723
925288640
1012400083
116aaa403
12419bb83
132752137
14190ada3
15114e173
hexbd35d3

12400083 has 6 divisors (see below), whose sum is σ = 17911244. Its totient is φ = 8266716.

The previous prime is 12400049. The next prime is 12400097. The reversal of 12400083 is 38000421.

It is a happy number.

It is not a de Polignac number, because 12400083 - 217 = 12269011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688885 + ... + 688902.

Almost surely, 212400083 is an apocalyptic number.

12400083 is a deficient number, since it is larger than the sum of its proper divisors (5511161).

12400083 is a wasteful number, since it uses less digits than its factorization.

12400083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377793 (or 1377790 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12400083 is about 3521.3751575201. The cubic root of 12400083 is about 231.4594218786.

The spelling of 12400083 in words is "twelve million, four hundred thousand, eighty-three".

Divisors: 1 3 9 1377787 4133361 12400083