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80682248402 = 27440992
BaseRepresentation
bin100101100100100001…
…0010110100011010010
321201020212212212212022
41023021002112203102
52310214123422102
6101022004331442
75554244540000
oct1131102264322
9251225785768
1080682248402
1131243031438
12137783a3b82
1377ba59a2b2
143c95611a70
1521733365a2
hex12c90968d2

80682248402 has 30 divisors (see below), whose sum is σ = 141219986103. Its totient is φ = 34569670716.

The previous prime is 80682248371. The next prime is 80682248407. The reversal of 80682248402 is 20484228608.

It can be written as a sum of positive squares in only one way, i.e., 40341124201 + 40341124201 = 200851^2 + 200851^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=200851.

It is not an unprimeable number, because it can be changed into a prime (80682248407) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 19681349 + ... + 19685447.

Almost surely, 280682248402 is an apocalyptic number.

80682248402 is a deficient number, since it is larger than the sum of its proper divisors (60537737701).

80682248402 is an frugal number, since it uses more digits than its factorization.

80682248402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 80682248402 in words is "eighty billion, six hundred eighty-two million, two hundred forty-eight thousand, four hundred two".

Divisors: 1 2 7 14 49 98 343 686 2401 4099 4802 8198 28693 57386 200851 401702 1405957 2811914 9841699 16801801 19683398 33603602 117612607 235225214 823288249 1646576498 5763017743 11526035486 40341124201 80682248402