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1350000018 = 232671119403
BaseRepresentation
bin101000001110111…
…0101110110010010
310111002021002212200
41100131311312102
510231100000033
6341543104030
745311545053
oct12035656622
93432232780
101350000018
11633048aa4
12318142016
131868c33a3
14cb41872a
157d7ba013
hex50775d92

1350000018 has 24 divisors (see below), whose sum is σ = 2968659408. Its totient is φ = 443283192.

The previous prime is 1350000011. The next prime is 1350000031. The reversal of 1350000018 is 8100000531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1350000011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558496 + ... + 560907.

It is an arithmetic number, because the mean of its divisors is an integer number (123694142).

Almost surely, 21350000018 is an apocalyptic number.

1350000018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1350000018 is an abundant number, since it is smaller than the sum of its proper divisors (1618659390).

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

1350000018 is a wasteful number, since it uses less digits than its factorization.

1350000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119478 (or 1119475 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1350000018 is about 36742.3463866966. The cubic root of 1350000018 is about 1105.2094545042.

Adding to 1350000018 its reverse (8100000531), we get a palindrome (9450000549).

The spelling of 1350000018 in words is "one billion, three hundred fifty million, eighteen", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 67 134 201 402 603 1206 1119403 2238806 3358209 6716418 10074627 20149254 75000001 150000002 225000003 450000006 675000009 1350000018