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72288869258 = 2181199693009
BaseRepresentation
bin100001101010011000…
…0001001101110001010
320220120221021001020002
41003110300021232022
52141021422304013
653113053203002
75136246151604
oct1032460115612
9226527231202
1072288869258
1128726200461
1212015490462
136a806c3368
1436da9c8174
151d31534358
hex10d4c09b8a

72288869258 has 8 divisors (see below), whose sum is σ = 109032383460. Its totient is φ = 35944741440.

The previous prime is 72288869239. The next prime is 72288869287. The reversal of 72288869258 is 85296888227.

It can be written as a sum of positive squares in 2 ways, for example, as 71686314049 + 602555209 = 267743^2 + 24547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72288869194 and 72288869203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99846143 + ... + 99846866.

Almost surely, 272288869258 is an apocalyptic number.

72288869258 is a deficient number, since it is larger than the sum of its proper divisors (36743514202).

72288869258 is a wasteful number, since it uses less digits than its factorization.

72288869258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199693192.

The product of its digits is 61931520, while the sum is 65.

The spelling of 72288869258 in words is "seventy-two billion, two hundred eighty-eight million, eight hundred sixty-nine thousand, two hundred fifty-eight".

Divisors: 1 2 181 362 199693009 399386018 36144434629 72288869258