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18683670352 = 241171997207
BaseRepresentation
bin10001011001101000…
…100010111101010000
31210020002121210102211
4101121220202331100
5301231004422402
612325543521504
71230666402064
oct213150427520
953202553384
1018683670352
117a18499086
123755159294
1319b9a73059
14c93553aa4
157454024d7
hex459a22f50

18683670352 has 20 divisors (see below), whose sum is σ = 36230561056. Its totient is φ = 9333848160.

The previous prime is 18683670289. The next prime is 18683670353. The reversal of 18683670352 is 25307638681.

It is a junction number, because it is equal to n+sod(n) for n = 18683670296 and 18683670305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18683670353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479868 + ... + 517339.

Almost surely, 218683670352 is an apocalyptic number.

It is an amenable number.

18683670352 is a deficient number, since it is larger than the sum of its proper divisors (17546890704).

18683670352 is a wasteful number, since it uses less digits than its factorization.

18683670352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998386 (or 998380 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 18683670352 in words is "eighteen billion, six hundred eighty-three million, six hundred seventy thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 1171 2342 4684 9368 18736 997207 1994414 3988828 7977656 15955312 1167729397 2335458794 4670917588 9341835176 18683670352