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5215240 = 235241541
BaseRepresentation
bin10011111001010000001000
3100210221222001
4103321100020
52313341430
6303440344
762220532
oct23712010
910727861
105215240
112a42318
1218b60b4
131107a54
1499a852
156d03ca
hex4f9408

5215240 has 32 divisors (see below), whose sum is σ = 11804760. Its totient is φ = 2073600.

The previous prime is 5215229. The next prime is 5215247. The reversal of 5215240 is 425125.

It can be written as a sum of positive squares in 4 ways, for example, as 4485924 + 729316 = 2118^2 + 854^2 .

It is not an unprimeable number, because it can be changed into a prime (5215247) 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, 9370 + ... + 9910.

Almost surely, 25215240 is an apocalyptic number.

It is an amenable number.

5215240 is an abundant number, since it is smaller than the sum of its proper divisors (6589520).

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

5215240 is a wasteful number, since it uses less digits than its factorization.

5215240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5215240 is about 2283.6899964750. The cubic root of 5215240 is about 173.4169057873.

The spelling of 5215240 in words is "five million, two hundred fifteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 241 482 541 964 1082 1205 1928 2164 2410 2705 4328 4820 5410 9640 10820 21640 130381 260762 521524 651905 1043048 1303810 2607620 5215240