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842575880180 = 2252052532
BaseRepresentation
bin11000100001011010110…
…11111001111111110100
32222112211120011112210202
430100231123321333310
5102301043411131210
61443023553140032
7114605546545406
oct14205533717764
92875746145722
10842575880180
112a5375133731
12117368b5a618
13615ba8a8498
142cad0a96b76
1516db5ee29a5
hexc42d6f9ff4

842575880180 has 18 divisors (see below), whose sum is σ = 1769417969046. Its totient is φ = 337028710048.

The previous prime is 842575880149. The next prime is 842575880191. The reversal of 842575880180 is 81088575248.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 332843536 + 842243036644 = 18244^2 + 917738^2 .

It is a super-2 number, since 2×8425758801802 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4002434 + ... + 4207686.

Almost surely, 2842575880180 is an apocalyptic number.

It is an amenable number.

842575880180 is an abundant number, since it is smaller than the sum of its proper divisors (926842088866).

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

842575880180 is an frugal number, since it uses more digits than its factorization.

842575880180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410515 (or 205260 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 56.

The spelling of 842575880180 in words is "eight hundred forty-two billion, five hundred seventy-five million, eight hundred eighty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 205253 410506 821012 1026265 2052530 4105060 42128794009 84257588018 168515176036 210643970045 421287940090 842575880180