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5215470 = 2351343311
BaseRepresentation
bin10011111001010011101110
3100210222021120
4103321103232
52313343340
6303441410
762221311
oct23712356
910728246
105215470
112a42507
1218b6266
131107ba0
1499a978
156d04d0
hex4f94ee

5215470 has 64 divisors (see below), whose sum is σ = 13837824. Its totient is φ = 1249920.

The previous prime is 5215459. The next prime is 5215477. The reversal of 5215470 is 745125.

It is a super-2 number, since 2×52154702 = 54402254641800, 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 5215470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16615 + ... + 16925.

It is an arithmetic number, because the mean of its divisors is an integer number (216216).

Almost surely, 25215470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5215470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6918912).

5215470 is an abundant number, since it is smaller than the sum of its proper divisors (8622354).

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

5215470 is a wasteful number, since it uses less digits than its factorization.

5215470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 5215470 is about 2283.7403530174. The cubic root of 5215470 is about 173.4194550660.

The spelling of 5215470 in words is "five million, two hundred fifteen thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 43 65 78 86 129 130 195 215 258 311 390 430 559 622 645 933 1118 1290 1555 1677 1866 2795 3110 3354 4043 4665 5590 8086 8385 9330 12129 13373 16770 20215 24258 26746 40119 40430 60645 66865 80238 121290 133730 173849 200595 347698 401190 521547 869245 1043094 1738490 2607735 5215470