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103161580 = 2257172649
BaseRepresentation
bin1100010011000…
…01111011101100
321012010011002021
412021201323230
5202402132310
614123035524
72361600424
oct611417354
9235104067
10103161580
1153260905
122a66bba4
13184ac872
14d9b5484
1590cb5da
hex6261eec

103161580 has 24 divisors (see below), whose sum is σ = 219693600. Its totient is φ = 40682880.

The previous prime is 103161557. The next prime is 103161623. The reversal of 103161580 is 85161301.

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, 34905 + ... + 37744.

It is an arithmetic number, because the mean of its divisors is an integer number (9153900).

Almost surely, 2103161580 is an apocalyptic number.

103161580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103161580 is an abundant number, since it is smaller than the sum of its proper divisors (116532020).

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

103161580 is a wasteful number, since it uses less digits than its factorization.

103161580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72729 (or 72727 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 103161580 is about 10156.8489208022. The cubic root of 103161580 is about 468.9998045107. Note that the first 3 decimals are identical.

The spelling of 103161580 in words is "one hundred three million, one hundred sixty-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 72649 145298 290596 363245 726490 1452980 5158079 10316158 20632316 25790395 51580790 103161580