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748641920 = 27513176779
BaseRepresentation
bin101100100111110…
…101111010000000
31221011200221122112
4230213311322000
53013123020140
6202141554452
724360231335
oct5447657200
91834627575
10748641920
11354652834
1218a875a28
13bc1405b0
14715da98c
1545acec65
hex2c9f5e80

748641920 has 256 divisors, whose sum is σ = 2097446400. Its totient is φ = 253034496.

The previous prime is 748641917. The next prime is 748641947. The reversal of 748641920 is 29146847.

748641920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9476441 + ... + 9476519.

It is an arithmetic number, because the mean of its divisors is an integer number (8193150).

Almost surely, 2748641920 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 748641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048723200).

748641920 is an abundant number, since it is smaller than the sum of its proper divisors (1348804480).

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

748641920 is a wasteful number, since it uses less digits than its factorization.

748641920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 748641920 is about 27361.3216055073. The cubic root of 748641920 is about 908.0115661551.

The spelling of 748641920 in words is "seven hundred forty-eight million, six hundred forty-one thousand, nine hundred twenty".