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508890172 = 227173134487
BaseRepresentation
bin11110010101010…
…000110000111100
31022110120022002011
4132111100300330
52020233441142
6122255141004
715416331550
oct3625206074
91273508064
10508890172
1124128979a
12122514764
138157875b
144b82b860
152ea22417
hex1e550c3c

508890172 has 48 divisors (see below), whose sum is σ = 1112444928. Its totient is φ = 198639360.

The previous prime is 508890169. The next prime is 508890191. The reversal of 508890172 is 271098805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488 + ... + 31999.

It is an arithmetic number, because the mean of its divisors is an integer number (23175936).

Almost surely, 2508890172 is an apocalyptic number.

It is an amenable number.

508890172 is an abundant number, since it is smaller than the sum of its proper divisors (603554756).

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

508890172 is a wasteful number, since it uses less digits than its factorization.

508890172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34546 (or 34544 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 508890172 is about 22558.5941937879. The cubic root of 508890172 is about 798.3770075125.

The spelling of 508890172 in words is "five hundred eight million, eight hundred ninety thousand, one hundred seventy-two".

Divisors: 1 2 4 7 14 17 28 31 34 62 68 119 124 217 238 434 476 527 868 1054 2108 3689 7378 14756 34487 68974 137948 241409 482818 586279 965636 1069097 1172558 2138194 2345116 4103953 4276388 7483679 8207906 14967358 16415812 18174649 29934716 36349298 72698596 127222543 254445086 508890172