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2472405 = 351331409
BaseRepresentation
bin1001011011100111010101
311122121111120
421123213111
51113104110
6124554153
730005115
oct11334725
94577446
102472405
111439611
129b2959
13687480
14485045
1533c870
hex25b9d5

2472405 has 32 divisors (see below), whose sum is σ = 4408320. Its totient is φ = 1175040.

The previous prime is 2472403. The next prime is 2472443. The reversal of 2472405 is 5042742.

It is not a de Polignac number, because 2472405 - 21 = 2472403 is a prime.

It is a super-2 number, since 2×24724052 = 12225572968050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5841 + ... + 6249.

It is an arithmetic number, because the mean of its divisors is an integer number (137760).

22472405 is an apocalyptic number.

It is an amenable number.

2472405 is a deficient number, since it is larger than the sum of its proper divisors (1935915).

2472405 is a wasteful number, since it uses less digits than its factorization.

2472405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2472405 is about 1572.3883108189. The cubic root of 2472405 is about 135.2196697979.

The spelling of 2472405 in words is "two million, four hundred seventy-two thousand, four hundred five".

Divisors: 1 3 5 13 15 31 39 65 93 155 195 403 409 465 1209 1227 2015 2045 5317 6045 6135 12679 15951 26585 38037 63395 79755 164827 190185 494481 824135 2472405