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8725340 = 2251337907
BaseRepresentation
bin100001010010…
…001101011100
3121102021220202
4201102031130
54213202330
6511003032
7134110211
oct41221534
917367822
108725340
114a1a528
122b09478
131a66630
141231b08
15b75445
hex85235c

8725340 has 48 divisors (see below), whose sum is σ = 20288352. Its totient is φ = 3131136.

The previous prime is 8725319. The next prime is 8725357. The reversal of 8725340 is 435278.

It is a happy number.

It is a super-2 number, since 2×87253402 = 152263116231200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9167 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (422674).

Almost surely, 28725340 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 8725340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10144176).

8725340 is an abundant number, since it is smaller than the sum of its proper divisors (11563012).

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

8725340 is a wasteful number, since it uses less digits than its factorization.

8725340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 8725340 is about 2953.8686497541. The cubic root of 8725340 is about 205.8705001900.

The spelling of 8725340 in words is "eight million, seven hundred twenty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 907 962 1814 1924 2405 3628 4535 4810 9070 9620 11791 18140 23582 33559 47164 58955 67118 117910 134236 167795 235820 335590 436267 671180 872534 1745068 2181335 4362670 8725340