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720725016 = 233116414259
BaseRepresentation
bin101010111101010…
…110010000011000
31212020011121212010
4222331112100120
52434001200031
6155303345520
723601030054
oct5275262030
91766147763
10720725016
1133a915410
121814522a0
13b641780b
146ba10c64
1543418246
hex2af56418

720725016 has 64 divisors (see below), whose sum is σ = 1969142400. Its totient is φ = 218009600.

The previous prime is 720725011. The next prime is 720725017. The reversal of 720725016 is 610527027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720725011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167095 + ... + 171353.

It is an arithmetic number, because the mean of its divisors is an integer number (30767850).

Almost surely, 2720725016 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 720725016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984571200).

720725016 is an abundant number, since it is smaller than the sum of its proper divisors (1248417384).

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

720725016 is a wasteful number, since it uses less digits than its factorization.

720725016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 720725016 is about 26846.3222062166. The cubic root of 720725016 is about 896.5816900687.

It can be divided in two parts, 7207 and 25016, that added together give a palindrome (32223).

The spelling of 720725016 in words is "seven hundred twenty million, seven hundred twenty-five thousand, sixteen".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 641 1282 1923 2564 3846 4259 5128 7051 7692 8518 12777 14102 15384 17036 21153 25554 28204 34072 42306 46849 51108 56408 84612 93698 102216 140547 169224 187396 281094 374792 562188 1124376 2730019 5460038 8190057 10920076 16380114 21840152 30030209 32760228 60060418 65520456 90090627 120120836 180181254 240241672 360362508 720725016