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88442265553 = 1725720243137
BaseRepresentation
bin101001001011110010…
…0011101111111010001
322110021200201121011221
41102113210131333101
52422112204444203
6104344012405041
76250452565465
oct1222744357721
9273250647157
1088442265553
1134565398154
1215183176781
138456197315
1443d008a4a5
15247972aabd
hex149791dfd1

88442265553 has 8 divisors (see below), whose sum is σ = 94009132872. Its totient is φ = 82915885056.

The previous prime is 88442265529. The next prime is 88442265559. The reversal of 88442265553 is 35556224488.

It can be written as a sum of positive squares in 4 ways, for example, as 59991684624 + 28450580929 = 244932^2 + 168673^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 88442265553 - 217 = 88442134481 is a prime.

It is a super-2 number, since 2×884422655532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88442265553.

It is not an unprimeable number, because it can be changed into a prime (88442265559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10117200 + ... + 10125937.

It is an arithmetic number, because the mean of its divisors is an integer number (11751141609).

Almost surely, 288442265553 is an apocalyptic number.

It is an amenable number.

88442265553 is a deficient number, since it is larger than the sum of its proper divisors (5566867319).

88442265553 is a wasteful number, since it uses less digits than its factorization.

88442265553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243411.

The product of its digits is 9216000, while the sum is 52.

The spelling of 88442265553 in words is "eighty-eight billion, four hundred forty-two million, two hundred sixty-five thousand, five hundred fifty-three".

Divisors: 1 17 257 4369 20243137 344133329 5202486209 88442265553