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20153483 = 7171631039
BaseRepresentation
bin100110011100…
…0010010001011
31101220220101022
41030320102023
520124402413
61555543055
7333205340
oct114702213
941826338
1020153483
1110415679
1268baa8b
13423824c
1429687c7
151b81608
hex133848b

20153483 has 16 divisors (see below), whose sum is σ = 24560640. Its totient is φ = 16142976.

The previous prime is 20153477. The next prime is 20153489. The reversal of 20153483 is 38435102.

It is an interprime number because it is at equal distance from previous prime (20153477) and next prime (20153489).

It is a cyclic number.

It is not a de Polignac number, because 20153483 - 24 = 20153467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153489) 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 15 ways as a sum of consecutive naturals, for example, 18878 + ... + 19916.

It is an arithmetic number, because the mean of its divisors is an integer number (1535040).

Almost surely, 220153483 is an apocalyptic number.

20153483 is a deficient number, since it is larger than the sum of its proper divisors (4407157).

20153483 is a wasteful number, since it uses less digits than its factorization.

20153483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20153483 is about 4489.2630798384. The cubic root of 20153483 is about 272.1343545804.

Adding to 20153483 its reverse (38435102), we get a palindrome (58588585).

The spelling of 20153483 in words is "twenty million, one hundred fifty-three thousand, four hundred eighty-three".

Divisors: 1 7 17 119 163 1039 1141 2771 7273 17663 19397 123641 169357 1185499 2879069 20153483