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60390090 = 2335223667
BaseRepresentation
bin1110011001011…
…1101011001010
311012122010122000
43212113223022
5110424440330
65554211430
71332210255
oct346275312
9135563560
1060390090
11310a7a72
1218283b76
13c6856a7
14804009c
15547d560
hex3997aca

60390090 has 32 divisors (see below), whose sum is σ = 161040960. Its totient is φ = 16103952.

The previous prime is 60390059. The next prime is 60390091. The reversal of 60390090 is 9009306.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (60390091) 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, 111564 + ... + 112103.

It is an arithmetic number, because the mean of its divisors is an integer number (5032530).

Almost surely, 260390090 is an apocalyptic number.

60390090 is an abundant number, since it is smaller than the sum of its proper divisors (100650870).

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

60390090 is a wasteful number, since it uses less digits than its factorization.

60390090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223683 (or 223677 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 60390090 is about 7771.1060988768. The cubic root of 60390090 is about 392.3333491338. Note that the first 4 decimals are identical.

Adding to 60390090 its reverse (9009306), we get a palindrome (69399396).

The spelling of 60390090 in words is "sixty million, three hundred ninety thousand, ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 223667 447334 671001 1118335 1342002 2013003 2236670 3355005 4026006 6039009 6710010 10065015 12078018 20130030 30195045 60390090