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21677803241 = 139487320237
BaseRepresentation
bin10100001100000110…
…010000011011101001
32001221202121111121112
4110030012100123221
5323344004200431
613543022320105
71365124200353
oct241406203351
961852544545
1021677803241
119214611476
12424ba29035
132076181c13
1410990700d3
1586d1d7c2b
hex50c1906e9

21677803241 has 8 divisors (see below), whose sum is σ = 21878660160. Its totient is φ = 21477588048.

The previous prime is 21677803229. The next prime is 21677803307. The reversal of 21677803241 is 14230877612.

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 21677803241 - 26 = 21677803177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21677803211) 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, 92426 + ... + 227811.

It is an arithmetic number, because the mean of its divisors is an integer number (2734832520).

Almost surely, 221677803241 is an apocalyptic number.

It is an amenable number.

21677803241 is a deficient number, since it is larger than the sum of its proper divisors (200856919).

21677803241 is a wasteful number, since it uses less digits than its factorization.

21677803241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320863.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 21677803241 in words is "twenty-one billion, six hundred seventy-seven million, eight hundred three thousand, two hundred forty-one".

Divisors: 1 139 487 67693 320237 44512943 155955419 21677803241