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22691414 = 211345707
BaseRepresentation
bin101011010001…
…1111001010110
31120200211202202
41112203321112
521302111124
62130204502
7363605504
oct126437126
946624682
1022691414
1111899439
127723732
134916495
143029674
151ed35ae
hex15a3e56

22691414 has 4 divisors (see below), whose sum is σ = 34037124. Its totient is φ = 11345706.

The previous prime is 22691399. The next prime is 22691419. The reversal of 22691414 is 41419622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41419622 = 220709811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22691419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5672852 + ... + 5672855.

It is an arithmetic number, because the mean of its divisors is an integer number (8509281).

Almost surely, 222691414 is an apocalyptic number.

22691414 is a deficient number, since it is larger than the sum of its proper divisors (11345710).

22691414 is a wasteful number, since it uses less digits than its factorization.

22691414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345709.

The product of its digits is 3456, while the sum is 29.

The square root of 22691414 is about 4763.5505665417. The cubic root of 22691414 is about 283.1091156518.

The spelling of 22691414 in words is "twenty-two million, six hundred ninety-one thousand, four hundred fourteen".

Divisors: 1 2 11345707 22691414