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2686807340 = 225773262897
BaseRepresentation
bin1010000000100101…
…0110110100101100
320221020200221202222
42200021112310230
521000310313330
61122335334512
7123403325360
oct24011266454
96836627688
102686807340
1111596a6138
1262b981438
1333a847939
141b6b9b2a0
1510ad2b0e5
hexa0256d2c

2686807340 has 48 divisors (see below), whose sum is σ = 6536695872. Its totient is φ = 908568576.

The previous prime is 2686807339. The next prime is 2686807351. The reversal of 2686807340 is 437086862.

It is a junction number, because it is equal to n+sod(n) for n = 2686807291 and 2686807300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121229 + ... + 141668.

It is an arithmetic number, because the mean of its divisors is an integer number (136181164).

Almost surely, 22686807340 is an apocalyptic number.

2686807340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2686807340 is an abundant number, since it is smaller than the sum of its proper divisors (3849888532).

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

2686807340 is a wasteful number, since it uses less digits than its factorization.

2686807340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262986 (or 262984 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 2686807340 is about 51834.4223465450. The cubic root of 2686807340 is about 1390.2049867622.

The spelling of 2686807340 in words is "two billion, six hundred eighty-six million, eight hundred seven thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 73 140 146 292 365 511 730 1022 1460 2044 2555 5110 10220 262897 525794 1051588 1314485 1840279 2628970 3680558 5257940 7361116 9201395 18402790 19191481 36805580 38382962 76765924 95957405 134340367 191914810 268680734 383829620 537361468 671701835 1343403670 2686807340