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2680697580 = 2235114061663
BaseRepresentation
bin1001111111001000…
…0011001011101100
320220211012112202120
42133302003023230
520442224310310
61122000352540
7123300360561
oct23762031354
96824175676
102680697580
111156202850
12629915750
133394b89b2
141b604a868
1510a520b70
hex9fc832ec

2680697580 has 48 divisors (see below), whose sum is σ = 8188314624. Its totient is φ = 649865920.

The previous prime is 2680697573. The next prime is 2680697611. The reversal of 2680697580 is 857960862.

It is a super-2 number, since 2×26806975802 = 14372279030835712800, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2030172 + ... + 2031491.

It is an arithmetic number, because the mean of its divisors is an integer number (170589888).

Almost surely, 22680697580 is an apocalyptic number.

2680697580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680697580 is an abundant number, since it is smaller than the sum of its proper divisors (5507617044).

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

2680697580 is a wasteful number, since it uses less digits than its factorization.

2680697580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061686 (or 4061684 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 2680697580 is about 51775.4534504528. The cubic root of 2680697580 is about 1389.1504185005.

The spelling of 2680697580 in words is "two billion, six hundred eighty million, six hundred ninety-seven thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 4061663 8123326 12184989 16246652 20308315 24369978 40616630 44678293 48739956 60924945 81233260 89356586 121849890 134034879 178713172 223391465 243699780 268069758 446782930 536139516 670174395 893565860 1340348790 2680697580