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90141054 = 23197910009
BaseRepresentation
bin1010101111101…
…11000101111110
320021121122021120
411113313011332
5141034003204
612540011410
72143120623
oct527670576
9207548246
1090141054
1146978343
1226230b66
13158a1203
14bd8634a
157da86d9
hex55f717e

90141054 has 32 divisors (see below), whose sum is σ = 192192000. Its totient is φ = 28102464.

The previous prime is 90141049. The next prime is 90141061. The reversal of 90141054 is 45014109.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4002 + ... + 14010.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000).

Almost surely, 290141054 is an apocalyptic number.

90141054 is an abundant number, since it is smaller than the sum of its proper divisors (102050946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90141054 is a wasteful number, since it uses less digits than its factorization.

90141054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 90141054 is about 9494.2642684939. The cubic root of 90141054 is about 448.3744709960.

It can be divided in two parts, 9014105 and 4, that added together give a palindrome (9014109).

The spelling of 90141054 in words is "ninety million, one hundred forty-one thousand, fifty-four".

Divisors: 1 2 3 6 19 38 57 79 114 158 237 474 1501 3002 4503 9006 10009 20018 30027 60054 190171 380342 570513 790711 1141026 1581422 2372133 4744266 15023509 30047018 45070527 90141054