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58206672818 = 272243712
BaseRepresentation
bin110110001101011000…
…110101011110110010
312120020112010100022222
4312031120311132302
51423201402012233
642423443001042
74130262361400
oct661530653662
9176215110288
1058206672818
112275a170888
12b345369182
135648065448
142b62636470
1517aa0b6898
hexd8d6357b2

58206672818 has 18 divisors (see below), whose sum is σ = 101568872223. Its totient is φ = 24944693340.

The previous prime is 58206672761. The next prime is 58206672851. The reversal of 58206672818 is 81827660285.

It can be written as a sum of positive squares in only one way, i.e., 29103336409 + 29103336409 = 170597^2 + 170597^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=170597.

It is a super-2 number, since 2×582066728182 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 58206672818.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2376173 + ... + 2400543.

Almost surely, 258206672818 is an apocalyptic number.

58206672818 is a deficient number, since it is larger than the sum of its proper divisors (43362199405).

58206672818 is an frugal number, since it uses more digits than its factorization.

58206672818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48758 (or 24380 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 58206672818 in words is "fifty-eight billion, two hundred six million, six hundred seventy-two thousand, eight hundred eighteen".

Divisors: 1 2 7 14 49 98 24371 48742 170597 341194 1194179 2388358 593945641 1187891282 4157619487 8315238974 29103336409 58206672818