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11930917 = 19627943
BaseRepresentation
bin101101100000…
…110100100101
3211110011010211
4231200310211
511023242132
61103415421
7203261005
oct55406445
924404124
1011930917
116809969
123bb4571
13261971b
141828005
1510aa147
hexb60d25

11930917 has 4 divisors (see below), whose sum is σ = 12558880. Its totient is φ = 11302956.

The previous prime is 11930873. The next prime is 11930927. The reversal of 11930917 is 71903911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11930917 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 (11930927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313953 + ... + 313990.

It is an arithmetic number, because the mean of its divisors is an integer number (3139720).

Almost surely, 211930917 is an apocalyptic number.

It is an amenable number.

11930917 is a deficient number, since it is larger than the sum of its proper divisors (627963).

11930917 is an equidigital number, since it uses as much as digits as its factorization.

11930917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627962.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 11930917 is about 3454.1159505726. The cubic root of 11930917 is about 228.5026677655.

The spelling of 11930917 in words is "eleven million, nine hundred thirty thousand, nine hundred seventeen".

Divisors: 1 19 627943 11930917