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424250431 = 1138568221
BaseRepresentation
bin11001010010011…
…000110000111111
31002120022011011221
4121102120300333
51332102003211
6110033054211
713341032503
oct3122306077
91076264157
10424250431
111a85296a0
12ba0b7367
1369b82577
14404b8303
15273a3c71
hex19498c3f

424250431 has 4 divisors (see below), whose sum is σ = 462818664. Its totient is φ = 385682200.

The previous prime is 424250429. The next prime is 424250441. The reversal of 424250431 is 134052424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424250431 - 21 = 424250429 is a prime.

It is a super-2 number, since 2×4242504312 = 359976856407371522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424250396 and 424250405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424250401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19284100 + ... + 19284121.

It is an arithmetic number, because the mean of its divisors is an integer number (115704666).

Almost surely, 2424250431 is an apocalyptic number.

424250431 is a deficient number, since it is larger than the sum of its proper divisors (38568233).

424250431 is a wasteful number, since it uses less digits than its factorization.

424250431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38568232.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 424250431 is about 20597.3403865645. The cubic root of 424250431 is about 751.4050290291.

The spelling of 424250431 in words is "four hundred twenty-four million, two hundred fifty thousand, four hundred thirty-one".

Divisors: 1 11 38568221 424250431