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50312430 = 2325779861
BaseRepresentation
bin1011111111101…
…1010011101110
310111200010200100
42333323103232
5100334444210
64554211530
71150435320
oct277732356
9114603610
1050312430
1126444523
1214a23ba6
13a56768c
146979610
15463c5c0
hex2ffb4ee

50312430 has 48 divisors (see below), whose sum is σ = 149501664. Its totient is φ = 11499840.

The previous prime is 50312429. The next prime is 50312441. The reversal of 50312430 is 3421305.

It is a super-2 number, since 2×503124302 = 5062681225009800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39301 + ... + 40560.

It is an arithmetic number, because the mean of its divisors is an integer number (3114618).

Almost surely, 250312430 is an apocalyptic number.

50312430 is an abundant number, since it is smaller than the sum of its proper divisors (99189234).

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

50312430 is a wasteful number, since it uses less digits than its factorization.

50312430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79881 (or 79878 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 50312430 is about 7093.1255452022. The cubic root of 50312430 is about 369.1688917743.

Adding to 50312430 its reverse (3421305), we get a palindrome (53733735).

The spelling of 50312430 in words is "fifty million, three hundred twelve thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 79861 159722 239583 399305 479166 559027 718749 798610 1118054 1197915 1437498 1677081 2395830 2795135 3354162 3593745 5031243 5590270 7187490 8385405 10062486 16770810 25156215 50312430