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20154324241 = 232113941453
BaseRepresentation
bin10010110001010010…
…101001010100010001
31221000120220202022101
4102301102221110101
5312234001333431
613131521040401
71312304633542
oct226122512421
957016822271
1020154324241
118602655117
123aa5786101
131b9265bb5c
14d929b84c9
157ce5a1961
hex4b14a9511

20154324241 has 8 divisors (see below), whose sum is σ = 21032101440. Its totient is φ = 19276672272.

The previous prime is 20154324227. The next prime is 20154324263. The reversal of 20154324241 is 14242345102.

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 20154324241 - 229 = 19617453329 is a prime.

It is a super-2 number, since 2×201543242412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20154324341) 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, 465471 + ... + 506923.

It is an arithmetic number, because the mean of its divisors is an integer number (2629012680).

Almost surely, 220154324241 is an apocalyptic number.

It is an amenable number.

20154324241 is a deficient number, since it is larger than the sum of its proper divisors (877777199).

20154324241 is a wasteful number, since it uses less digits than its factorization.

20154324241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62615.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 20154324241 its reverse (14242345102), we get a palindrome (34396669343).

The spelling of 20154324241 in words is "twenty billion, one hundred fifty-four million, three hundred twenty-four thousand, two hundred forty-one".

Divisors: 1 23 21139 41453 486197 953419 876274967 20154324241