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676890020 = 225172117109
BaseRepresentation
bin101000010110001…
…000010110100100
31202011200120112202
4220112020112210
52341240440040
6151100034032
722526320202
oct5026102644
91664616482
10676890020
113180a5544
1216a832918
13aa30a551
1465c80072
153e65a015
hex285885a4

676890020 has 36 divisors (see below), whose sum is σ = 1510016340. Its totient is φ = 254827008.

The previous prime is 676890013. The next prime is 676890059. The reversal of 676890020 is 20098676.

It can be written as a sum of positive squares in 6 ways, for example, as 6390784 + 670499236 = 2528^2 + 25894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52775 + ... + 64334.

Almost surely, 2676890020 is an apocalyptic number.

It is an amenable number.

676890020 is an abundant number, since it is smaller than the sum of its proper divisors (833126320).

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

676890020 is a wasteful number, since it uses less digits than its factorization.

676890020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117152 (or 117133 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 676890020 is about 26017.1101392910. The cubic root of 676890020 is about 878.0232921213.

The spelling of 676890020 in words is "six hundred seventy-six million, eight hundred ninety thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 1156 1445 2890 5780 117109 234218 468436 585545 1171090 1990853 2342180 3981706 7963412 9954265 19908530 33844501 39817060 67689002 135378004 169222505 338445010 676890020