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8725940 = 2251922963
BaseRepresentation
bin100001010010…
…010110110100
3121102022201222
4201102112310
54213212230
6511005512
7134112026
oct41222664
917368658
108725940
114a1aa23
122b09898
131a669a2
141232016
15b756e5
hex8525b4

8725940 has 24 divisors (see below), whose sum is σ = 19289760. Its totient is φ = 3306528.

The previous prime is 8725931. The next prime is 8725949. The reversal of 8725940 is 495278.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8725931) and next prime (8725949).

It is a super-2 number, since 2×87259402 = 152284057767200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8725940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725949) 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, 11102 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (803740).

Almost surely, 28725940 is an apocalyptic number.

It is an amenable number.

8725940 is an abundant number, since it is smaller than the sum of its proper divisors (10563820).

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

8725940 is a wasteful number, since it uses less digits than its factorization.

8725940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22991 (or 22989 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 8725940 is about 2953.9702097347. The cubic root of 8725940 is about 205.8752189925.

The spelling of 8725940 in words is "eight million, seven hundred twenty-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 22963 45926 91852 114815 229630 436297 459260 872594 1745188 2181485 4362970 8725940