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613990380 = 223510233173
BaseRepresentation
bin100100100110001…
…011111111101100
31120210022221110110
4210212023333230
52224140143010
6140531540020
721133555263
oct4446137754
91523287413
10613990380
11295644073
1215175a610
139a286823
145b7895da
1538d83120
hex2498bfec

613990380 has 24 divisors (see below), whose sum is σ = 1719173232. Its totient is φ = 163730752.

The previous prime is 613990369. The next prime is 613990381. The reversal of 613990380 is 83099316.

It is not an unprimeable number, because it can be changed into a prime (613990381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5116527 + ... + 5116646.

It is an arithmetic number, because the mean of its divisors is an integer number (71632218).

Almost surely, 2613990380 is an apocalyptic number.

613990380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613990380 is an abundant number, since it is smaller than the sum of its proper divisors (1105182852).

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

613990380 is a wasteful number, since it uses less digits than its factorization.

613990380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233185 (or 10233183 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 613990380 is about 24778.8292701653. The cubic root of 613990380 is about 849.9378870414.

The spelling of 613990380 in words is "six hundred thirteen million, nine hundred ninety thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 10233173 20466346 30699519 40932692 51165865 61399038 102331730 122798076 153497595 204663460 306995190 613990380