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250401430 = 25472272347
BaseRepresentation
bin11101110110011…
…01001010010110
3122110011201012001
432323031022112
51003100321210
640502545514
76130243216
oct1673151226
9573151161
10250401430
11119388334
126ba3829a
133cb53336
1425382246
1516eb303a
hexeecd296

250401430 has 32 divisors (see below), whose sum is σ = 462537216. Its totient is φ = 97556064.

The previous prime is 250401413. The next prime is 250401433. The reversal of 250401430 is 34104052.

It is a super-2 number, since 2×2504014302 = 125401752292089800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 250401398 and 250401407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250401433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105517 + ... + 107863.

It is an arithmetic number, because the mean of its divisors is an integer number (14454288).

Almost surely, 2250401430 is an apocalyptic number.

250401430 is a deficient number, since it is larger than the sum of its proper divisors (212135786).

250401430 is a wasteful number, since it uses less digits than its factorization.

250401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 250401430 is about 15824.0775402549. The cubic root of 250401430 is about 630.2975247074.

Adding to 250401430 its reverse (34104052), we get a palindrome (284505482).

The spelling of 250401430 in words is "two hundred fifty million, four hundred one thousand, four hundred thirty".

Divisors: 1 2 5 10 47 94 227 235 454 470 1135 2270 2347 4694 10669 11735 21338 23470 53345 106690 110309 220618 532769 551545 1065538 1103090 2663845 5327690 25040143 50080286 125200715 250401430