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11992051 = 29616779
BaseRepresentation
bin101101101111…
…101111110011
3211120021000001
4231233233303
511032221201
61105010431
7203634151
oct55575763
924507001
1011992051
116850895
124023a17
13263b4b6
1418423d1
1510bd301
hexb6fbf3

11992051 has 8 divisors (see below), whose sum is σ = 12610800. Its totient is φ = 11387040.

The previous prime is 11992037. The next prime is 11992061. The reversal of 11992051 is 15029911.

11992051 = 6292 + 6302 + ... + 6572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11992051 - 213 = 11983859 is a prime.

It is a super-4 number, since 4×119920514 (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11992061) 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, 1621 + ... + 5158.

It is an arithmetic number, because the mean of its divisors is an integer number (1576350).

Almost surely, 211992051 is an apocalyptic number.

11992051 is a deficient number, since it is larger than the sum of its proper divisors (618749).

11992051 is an equidigital number, since it uses as much as digits as its factorization.

11992051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 11992051 is about 3462.9540857482. The cubic root of 11992051 is about 228.8922854916.

The spelling of 11992051 in words is "eleven million, nine hundred ninety-two thousand, fifty-one".

Divisors: 1 29 61 1769 6779 196591 413519 11992051