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1405472224 = 251323146893
BaseRepresentation
bin101001111000101…
…1100110111100000
310121221122101102211
41103301130313200
510334300102344
6351244051504
746554213442
oct12361346740
93557571384
101405472224
116613970a2
12332833b94
13195246490
14d4938492
15835c6334
hex53c5cde0

1405472224 has 48 divisors (see below), whose sum is σ = 3109452192. Its totient is φ = 620471808.

The previous prime is 1405472221. The next prime is 1405472249. The reversal of 1405472224 is 4222745041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405472221) 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, 63879 + ... + 83014.

It is an arithmetic number, because the mean of its divisors is an integer number (64780254).

Almost surely, 21405472224 is an apocalyptic number.

It is an amenable number.

1405472224 is an abundant number, since it is smaller than the sum of its proper divisors (1703979968).

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

1405472224 is a wasteful number, since it uses less digits than its factorization.

1405472224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146939 (or 146931 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 1405472224 is about 37489.6282190155. The cubic root of 1405472224 is about 1120.1445986776.

The spelling of 1405472224 in words is "one billion, four hundred five million, four hundred seventy-two thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 16 23 26 32 46 52 92 104 184 208 299 368 416 598 736 1196 2392 4784 9568 146893 293786 587572 1175144 1909609 2350288 3378539 3819218 4700576 6757078 7638436 13514156 15276872 27028312 30553744 43921007 54056624 61107488 87842014 108113248 175684028 351368056 702736112 1405472224