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11977101 = 321330789
BaseRepresentation
bin101101101100…
…000110001101
3211112111111100
4231230012031
511031231401
61104413313
7203542443
oct55540615
924474440
1011977101
116840634
124017239
132634756
14183ab93
1510b8b86
hexb6c18d

11977101 has 6 divisors (see below), whose sum is σ = 17300270. Its totient is φ = 7984728.

The previous prime is 11977039. The next prime is 11977109. The reversal of 11977101 is 10177911.

11977101 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9771876 + 2205225 = 3126^2 + 1485^2 .

It is not a de Polignac number, because 11977101 - 214 = 11960717 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 (11977109) 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, 665386 + ... + 665403.

Almost surely, 211977101 is an apocalyptic number.

It is an amenable number.

11977101 is a deficient number, since it is larger than the sum of its proper divisors (5323169).

11977101 is a wasteful number, since it uses less digits than its factorization.

11977101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330795 (or 1330792 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 27.

The square root of 11977101 is about 3460.7948508977. The cubic root of 11977101 is about 228.7971290514.

The spelling of 11977101 in words is "eleven million, nine hundred seventy-seven thousand, one hundred one".

Divisors: 1 3 9 1330789 3992367 11977101