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258003430 = 25298111097
BaseRepresentation
bin11110110000011…
…01000111100110
3122222110221011121
433120031013212
51012022102210
641333524154
76251664406
oct1730150746
9588427147
10258003430
111226aa883
12724a365a
13415b5569
14263a0806
15179b56da
hexf60d1e6

258003430 has 32 divisors (see below), whose sum is σ = 481451040. Its totient is φ = 99429120.

The previous prime is 258003419. The next prime is 258003461. The reversal of 258003430 is 34300852.

It is a junction number, because it is equal to n+sod(n) for n = 258003395 and 258003404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234642 + ... + 235738.

It is an arithmetic number, because the mean of its divisors is an integer number (15045345).

Almost surely, 2258003430 is an apocalyptic number.

258003430 is a deficient number, since it is larger than the sum of its proper divisors (223447610).

258003430 is a wasteful number, since it uses less digits than its factorization.

258003430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 258003430 is about 16062.4851750904. The cubic root of 258003430 is about 636.6124971806.

The spelling of 258003430 in words is "two hundred fifty-eight million, three thousand, four hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 811 1097 1622 2194 4055 5485 8110 10970 23519 31813 47038 63626 117595 159065 235190 318130 889667 1779334 4448335 8896670 25800343 51600686 129001715 258003430