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69091242288 = 24323132747161
BaseRepresentation
bin100000001011000101…
…0001011000100110000
320121100002100202122120
41000112022023010300
52112444324223123
651423505034240
74664100604155
oct1002612130460
9217302322576
1069091242288
1127335228a42
1211482625980
1366910a59b3
1434b605a22c
151be59542e3
hex101628b130

69091242288 has 80 divisors (see below), whose sum is σ = 186390260736. Its totient is φ = 22012024320.

The previous prime is 69091242271. The next prime is 69091242293. The reversal of 69091242288 is 88224219096.

It is a self number, because there is not a number n which added to its sum of digits gives 69091242288.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441428 + ... + 1488588.

Almost surely, 269091242288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69091242288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93195130368).

69091242288 is an abundant number, since it is smaller than the sum of its proper divisors (117299018448).

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

69091242288 is a wasteful number, since it uses less digits than its factorization.

69091242288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48522 (or 48516 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 69091242288 in words is "sixty-nine billion, ninety-one million, two hundred forty-two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 184 276 368 552 1104 1327 2654 3981 5308 7962 10616 15924 21232 30521 31848 47161 61042 63696 91563 94322 122084 141483 183126 188644 244168 282966 366252 377288 488336 565932 732504 754576 1084703 1131864 1465008 2169406 2263728 3254109 4338812 6508218 8677624 13016436 17355248 26032872 52065744 62582647 125165294 187747941 250330588 375495882 500661176 750991764 1001322352 1439400881 1501983528 2878801762 3003967056 4318202643 5757603524 8636405286 11515207048 17272810572 23030414096 34545621144 69091242288