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550803492 = 223215300097
BaseRepresentation
bin100000110101001…
…001100000100100
31102101102201100100
4200311021200210
52112001202432
6130353344100
716435516041
oct4065114044
91371381310
10550803492
11262a068a8
12134568030
138a162135
145321c1c8
153355107c
hex20d49824

550803492 has 18 divisors (see below), whose sum is σ = 1392308918. Its totient is φ = 183601152.

The previous prime is 550803479. The next prime is 550803493. The reversal of 550803492 is 294308055.

It can be written as a sum of positive squares in only one way, i.e., 320553216 + 230250276 = 17904^2 + 15174^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 15300097 = 550803492 / (5 + 5 + 0 + 8 + 0 + 3 + 4 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (550803493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7650013 + ... + 7650084.

Almost surely, 2550803492 is an apocalyptic number.

It is an amenable number.

550803492 is an abundant number, since it is smaller than the sum of its proper divisors (841505426).

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

550803492 is a wasteful number, since it uses less digits than its factorization.

550803492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15300107 (or 15300102 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 550803492 is about 23469.2030542155. The cubic root of 550803492 is about 819.7200571270.

The spelling of 550803492 in words is "five hundred fifty million, eight hundred three thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 15300097 30600194 45900291 61200388 91800582 137700873 183601164 275401746 550803492