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274685680 = 24529118399
BaseRepresentation
bin10000010111110…
…101111011110000
3201010212110220201
4100113311323300
51030304420210
643131244544
76543534613
oct2027657360
9633773821
10274685680
11131064465
1277ba9754
1344ba6809
14286a417a
15191ad53a
hex105f5ef0

274685680 has 40 divisors (see below), whose sum is σ = 660672000. Its totient is φ = 106084608.

The previous prime is 274685659. The next prime is 274685683. The reversal of 274685680 is 86586472.

274685680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 274685680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274685683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56880 + ... + 61519.

It is an arithmetic number, because the mean of its divisors is an integer number (16516800).

Almost surely, 2274685680 is an apocalyptic number.

274685680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274685680 is an abundant number, since it is smaller than the sum of its proper divisors (385986320).

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

274685680 is a wasteful number, since it uses less digits than its factorization.

274685680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118441 (or 118435 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 274685680 is about 16573.6441376059. The cubic root of 274685680 is about 650.0478702417.

The spelling of 274685680 in words is "two hundred seventy-four million, six hundred eighty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 118399 236798 473596 591995 947192 1183990 1894384 2367980 3433571 4735960 6867142 9471920 13734284 17167855 27468568 34335710 54937136 68671420 137342840 274685680