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254551442 = 2235639829
BaseRepresentation
bin11110010110000…
…10010110010010
3122201222112221012
433023002112102
51010131121232
641131530522
76210436325
oct1713022622
9581875835
10254551442
111207622a2
12712b9a42
1340977272
1425b427bc
15175329b2
hexf2c2592

254551442 has 16 divisors (see below), whose sum is σ = 399176640. Its totient is φ = 121513392.

The previous prime is 254551397. The next prime is 254551457. The reversal of 254551442 is 244155452.

It is a junction number, because it is equal to n+sod(n) for n = 254551399 and 254551408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20984 + ... + 30812.

It is an arithmetic number, because the mean of its divisors is an integer number (24948540).

Almost surely, 2254551442 is an apocalyptic number.

254551442 is a deficient number, since it is larger than the sum of its proper divisors (144625198).

254551442 is a wasteful number, since it uses less digits than its factorization.

254551442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10417.

The product of its digits is 32000, while the sum is 32.

The square root of 254551442 is about 15954.6683450331. The cubic root of 254551442 is about 633.7605284662.

The spelling of 254551442 in words is "two hundred fifty-four million, five hundred fifty-one thousand, four hundred forty-two".

Divisors: 1 2 23 46 563 1126 9829 12949 19658 25898 226067 452134 5533727 11067454 127275721 254551442