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490803049 = 11237189307
BaseRepresentation
bin11101010000010…
…000111101101001
31021012112101012201
4131100100331221
52001121144144
6120411340201
715106520452
oct3520207551
91235471181
10490803049
11232055660
12118451661
137a8b4c09
1449280129
152d14d1d4
hex1d410f69

490803049 has 32 divisors (see below), whose sum is σ = 574801920. Its totient is φ = 414691200.

The previous prime is 490803031. The next prime is 490803059. The reversal of 490803049 is 940308094.

It is not a de Polignac number, because 490803049 - 211 = 490801001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 490802999 and 490803017.

It is not an unprimeable number, because it can be changed into a prime (490803029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1598554 + ... + 1598860.

It is an arithmetic number, because the mean of its divisors is an integer number (17962560).

Almost surely, 2490803049 is an apocalyptic number.

It is an amenable number.

490803049 is a deficient number, since it is larger than the sum of its proper divisors (83998871).

490803049 is a wasteful number, since it uses less digits than its factorization.

490803049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 490803049 is about 22154.0752233082. The cubic root of 490803049 is about 788.8039632627.

The spelling of 490803049 in words is "four hundred ninety million, eight hundred three thousand, forty-nine".

Divisors: 1 11 23 71 89 253 307 781 979 1633 2047 3377 6319 7061 17963 21797 22517 27323 69509 77671 145337 239767 300553 501331 628429 1598707 1939933 5514641 6912719 21339263 44618459 490803049