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90053961 = 3291496947
BaseRepresentation
bin1010101111000…
…01110101001001
320021110012210220
411113201311021
5141023211321
612534100253
72142305664
oct527416511
9207405726
1090053961
1146918968
12261aa689
131587068a
14bd626db
157d8c9c6
hex55e1d49

90053961 has 16 divisors (see below), whose sum is σ = 125064000. Its totient is φ = 57568448.

The previous prime is 90053959. The next prime is 90053969. The reversal of 90053961 is 16935009.

90053961 is nontrivially palindromic in base 14.

It is a cyclic number.

It is not a de Polignac number, because 90053961 - 21 = 90053959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90053969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9490 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (7816500).

Almost surely, 290053961 is an apocalyptic number.

It is an amenable number.

90053961 is a deficient number, since it is larger than the sum of its proper divisors (35010039).

90053961 is a wasteful number, since it uses less digits than its factorization.

90053961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 90053961 is about 9489.6765487555. The cubic root of 90053961 is about 448.2300201255.

The spelling of 90053961 in words is "ninety million, fifty-three thousand, nine hundred sixty-one".

Divisors: 1 3 29 87 149 447 4321 6947 12963 20841 201463 604389 1035103 3105309 30017987 90053961