Search a number
-
+
749949471 = 32163511213
BaseRepresentation
bin101100101100110…
…101001000011111
31221021011101021100
4230230311020133
53013441340341
6202230004143
724404315415
oct5454651037
91837141240
10749949471
11355366157
1218b1a6653
13bc4aa7ab
147185b2b5
1545c8c3b6
hex2cb3521f

749949471 has 12 divisors (see below), whose sum is σ = 1089908248. Its totient is φ = 496898064.

The previous prime is 749949469. The next prime is 749949479. The reversal of 749949471 is 174949947.

It is not a de Polignac number, because 749949471 - 21 = 749949469 is a prime.

It is a super-3 number, since 3×7499494713 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749949479) 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, 254140 + ... + 257073.

Almost surely, 2749949471 is an apocalyptic number.

749949471 is a deficient number, since it is larger than the sum of its proper divisors (339958777).

749949471 is a wasteful number, since it uses less digits than its factorization.

749949471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511382 (or 511379 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 749949471 is about 27385.2053306160. The cubic root of 749949471 is about 908.5398921164.

The spelling of 749949471 in words is "seven hundred forty-nine million, nine hundred forty-nine thousand, four hundred seventy-one".

Divisors: 1 3 9 163 489 1467 511213 1533639 4600917 83327719 249983157 749949471