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749949472 = 2559491809
BaseRepresentation
bin101100101100110…
…101001000100000
31221021011101021101
4230230311020200
53013441340342
6202230004144
724404315416
oct5454651040
91837141241
10749949472
11355366158
1218b1a6654
13bc4aa7ac
147185b2b6
1545c8c3b7
hex2cb35220

749949472 has 48 divisors (see below), whose sum is σ = 1506405600. Its totient is φ = 367413760.

The previous prime is 749949469. The next prime is 749949479. The reversal of 749949472 is 274949947.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 926604 + ... + 927412.

It is an arithmetic number, because the mean of its divisors is an integer number (31383450).

Almost surely, 2749949472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749949472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753202800).

749949472 is an abundant number, since it is smaller than the sum of its proper divisors (756456128).

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

749949472 is a wasteful number, since it uses less digits than its factorization.

749949472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1361 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The square root of 749949472 is about 27385.2053488741. The cubic root of 749949472 is about 908.5398925202.

The spelling of 749949472 in words is "seven hundred forty-nine million, nine hundred forty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 59 118 236 472 491 809 944 982 1618 1888 1964 3236 3928 6472 7856 12944 15712 25888 28969 47731 57938 95462 115876 190924 231752 381848 397219 463504 763696 794438 927008 1527392 1588876 3177752 6355504 12711008 23435921 46871842 93743684 187487368 374974736 749949472