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424631493 = 321113437673
BaseRepresentation
bin11001010011110…
…101110011000101
31002121000111220100
4121103311303011
51332201201433
6110045154313
713344210456
oct3123656305
91077014810
10424631493
111a8769a20
12ba25b999
1369c86b50
144057712d
152742bb13
hex194f5cc5

424631493 has 48 divisors (see below), whose sum is σ = 737440704. Its totient is φ = 232001280.

The previous prime is 424631489. The next prime is 424631503. The reversal of 424631493 is 394136424.

It is a happy number.

It is not a de Polignac number, because 424631493 - 22 = 424631489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424631443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51505 + ... + 59177.

It is an arithmetic number, because the mean of its divisors is an integer number (15363348).

Almost surely, 2424631493 is an apocalyptic number.

424631493 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

424631493 is a deficient number, since it is larger than the sum of its proper divisors (312809211).

424631493 is a wasteful number, since it uses less digits than its factorization.

424631493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7743 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 424631493 is about 20606.5885822957. The cubic root of 424631493 is about 751.6299325272.

It can be divided in two parts, 42463 and 1493, that added together give a triangular number (43956 = T296).

The spelling of 424631493 in words is "four hundred twenty-four million, six hundred thirty-one thousand, four hundred ninety-three".

Divisors: 1 3 9 11 13 33 39 43 99 117 129 143 387 429 473 559 1287 1419 1677 4257 5031 6149 7673 18447 23019 55341 69057 84403 99749 253209 299247 329939 759627 897741 989817 1097239 2969451 3291717 3629329 4289207 9875151 10887987 12867621 32663961 38602863 47181277 141543831 424631493