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725390848 = 2971315569
BaseRepresentation
bin101011001111001…
…001011000000000
31212112221200011201
4223033021120000
52441200001343
6155551350544
723655502060
oct5317113000
91775850151
10725390848
11342511976
12182b22454
13b738c470
146c4a73a0
1543a3a94d
hex2b3c9600

725390848 has 80 divisors (see below), whose sum is σ = 1783948320. Its totient is φ = 286949376.

The previous prime is 725390837. The next prime is 725390879. The reversal of 725390848 is 848093527.

It is a junction number, because it is equal to n+sod(n) for n = 725390798 and 725390807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38808 + ... + 54376.

It is an arithmetic number, because the mean of its divisors is an integer number (22299354).

Almost surely, 2725390848 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 725390848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891974160).

725390848 is an abundant number, since it is smaller than the sum of its proper divisors (1058557472).

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

725390848 is a wasteful number, since it uses less digits than its factorization.

725390848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607 (or 15591 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 725390848 is about 26933.0809229097. The cubic root of 725390848 is about 898.5122944319.

The spelling of 725390848 in words is "seven hundred twenty-five million, three hundred ninety thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 182 208 224 256 364 416 448 512 728 832 896 1456 1664 1792 2912 3328 3584 5824 6656 11648 15569 23296 31138 46592 62276 108983 124552 202397 217966 249104 404794 435932 498208 809588 871864 996416 1416779 1619176 1743728 1992832 2833558 3238352 3487456 3985664 5667116 6476704 6974912 7971328 11334232 12953408 13949824 22668464 25906816 27899648 45336928 51813632 55799296 90673856 103627264 181347712 362695424 725390848