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258255042 = 23371163311
BaseRepresentation
bin11110110010010…
…10100011000010
3122222221201022120
433121022203002
51012103130132
641343145110
76254063103
oct1731124302
9588851276
10258255042
11122861921
12725a5196
1341672c46
14264283aa
1517a1502c
hexf64a8c2

258255042 has 16 divisors (see below), whose sum is σ = 530470272. Its totient is φ = 83758320.

The previous prime is 258254987. The next prime is 258255043. The reversal of 258255042 is 240552852.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 258254994 and 258255012.

It is not an unprimeable number, because it can be changed into a prime (258255043) 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 7 ways as a sum of consecutive naturals, for example, 581434 + ... + 581877.

It is an arithmetic number, because the mean of its divisors is an integer number (33154392).

Almost surely, 2258255042 is an apocalyptic number.

258255042 is an abundant number, since it is smaller than the sum of its proper divisors (272215230).

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

258255042 is a wasteful number, since it uses less digits than its factorization.

258255042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163353.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 258255042 is about 16070.3155538403. The cubic root of 258255042 is about 636.8193772486.

The spelling of 258255042 in words is "two hundred fifty-eight million, two hundred fifty-five thousand, forty-two".

Divisors: 1 2 3 6 37 74 111 222 1163311 2326622 3489933 6979866 43042507 86085014 129127521 258255042