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8125140 = 2235191709
BaseRepresentation
bin11110111111101011010100
3120021210121010
4132333223110
54040001030
6450052220
7126030312
oct36775324
916253533
108125140
11464a5a1
12287a070
1318b639a
1411170b2
15aa76b0
hex7bfad4

8125140 has 48 divisors (see below), whose sum is σ = 22901760. Its totient is φ = 2152320.

The previous prime is 8125127. The next prime is 8125153. The reversal of 8125140 is 415218.

It is an interprime number because it is at equal distance from previous prime (8125127) and next prime (8125153).

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, 11106 + ... + 11814.

It is an arithmetic number, because the mean of its divisors is an integer number (477120).

Almost surely, 28125140 is an apocalyptic number.

It is an amenable number.

8125140 is an abundant number, since it is smaller than the sum of its proper divisors (14776620).

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

8125140 is a wasteful number, since it uses less digits than its factorization.

8125140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 8125140 is about 2850.4631202666. The cubic root of 8125140 is about 201.0374425928.

The spelling of 8125140 in words is "eight million, one hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 191 382 573 709 764 955 1146 1418 1910 2127 2292 2836 2865 3545 3820 4254 5730 7090 8508 10635 11460 14180 21270 42540 135419 270838 406257 541676 677095 812514 1354190 1625028 2031285 2708380 4062570 8125140