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202431330424 = 23137347532277
BaseRepresentation
bin1011110010000111011…
…0001111100001111000
3201100111210021001211101
42330201312033201320
511304034410033144
6232555021541144
720424302626621
oct2744166174170
9640453231741
10202431330424
117893a232794
1233295a147b4
1316120c5752b
149b24d78a48
1553ebb386d4
hex2f21d8f878

202431330424 has 32 divisors (see below), whose sum is σ = 383431780080. Its totient is φ = 100187117824.

The previous prime is 202431330407. The next prime is 202431330511. The reversal of 202431330424 is 424033134202.

It is a junction number, because it is equal to n+sod(n) for n = 202431330392 and 202431330401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114174 + ... + 646450.

Almost surely, 2202431330424 is an apocalyptic number.

It is an amenable number.

202431330424 is a deficient number, since it is larger than the sum of its proper divisors (181000449656).

202431330424 is a wasteful number, since it uses less digits than its factorization.

202431330424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532767 (or 532763 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 202431330424 its reverse (424033134202), we get a palindrome (626464464626).

The spelling of 202431330424 in words is "two hundred two billion, four hundred thirty-one million, three hundred thirty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 137 274 347 548 694 1096 1388 2776 47539 95078 190156 380312 532277 1064554 2129108 4258216 72921949 145843898 184700119 291687796 369400238 583375592 738800476 1477600952 25303916303 50607832606 101215665212 202431330424