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22941661 = 431274201
BaseRepresentation
bin101011110000…
…0111111011101
31121011120001011
41113200333131
521333113121
62135415221
7366000211
oct127407735
947146034
1022941661
1111a4a456
127824511
1349a3362
143092941
1520327e1
hex15e0fdd

22941661 has 8 divisors (see below), whose sum is σ = 23665664. Its totient is φ = 22226400.

The previous prime is 22941647. The next prime is 22941689. The reversal of 22941661 is 16614922.

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

It is a 4-Lehmer number, since φ(22941661) divides (22941661-1)4.

It is a cyclic number.

It is not a de Polignac number, because 22941661 - 223 = 14553053 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 (22941601) 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, 3361 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (2958208).

Almost surely, 222941661 is an apocalyptic number.

It is an amenable number.

22941661 is a deficient number, since it is larger than the sum of its proper divisors (724003).

22941661 is a wasteful number, since it uses less digits than its factorization.

22941661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371.

The product of its digits is 5184, while the sum is 31.

The square root of 22941661 is about 4789.7454003318. The cubic root of 22941661 is about 284.1460475097.

The spelling of 22941661 in words is "twenty-two million, nine hundred forty-one thousand, six hundred sixty-one".

Divisors: 1 43 127 4201 5461 180643 533527 22941661