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408427572 = 223719255907
BaseRepresentation
bin11000010110000…
…001110000110100
31001110112021022010
4120112001300310
51314024140242
6104310004220
713056401640
oct3026016064
91043467263
10408427572
1119a601753
12b4946670
1366802527
143c359c20
1525cca89c
hex18581c34

408427572 has 48 divisors (see below), whose sum is σ = 1146467840. Its totient is φ = 110551392.

The previous prime is 408427549. The next prime is 408427577. The reversal of 408427572 is 275724804.

It is a self number, because there is not a number n which added to its sum of digits gives 408427572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408427577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126358 + ... + 129549.

Almost surely, 2408427572 is an apocalyptic number.

408427572 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

408427572 is an abundant number, since it is smaller than the sum of its proper divisors (738040268).

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

408427572 is a wasteful number, since it uses less digits than its factorization.

408427572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255940 (or 255938 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 408427572 is about 20209.5910893813. The cubic root of 408427572 is about 741.9449517554.

The spelling of 408427572 in words is "four hundred eight million, four hundred twenty-seven thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 255907 511814 767721 1023628 1535442 1791349 3070884 3582698 4862233 5374047 7165396 9724466 10748094 14586699 19448932 21496188 29173398 34035631 58346796 68071262 102106893 136142524 204213786 408427572