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20203200131232 = 253509413457763
BaseRepresentation
bin1001001011111111011001…
…00100010011000010100000
32122112101222202100200221010
410211333230210103002200
510122002123213144412
6110545115542100520
74153430063443356
oct445775444230240
978471882320833
1020203200131232
11648a146861198
122323622a1a740
13b371cc5b9391
144dbba935d7d6
152507e923233c
hex125fec9130a0

20203200131232 has 48 divisors (see below), whose sum is σ = 53137591829280. Its totient is φ = 6721169379072.

The previous prime is 20203200131221. The next prime is 20203200131237. The reversal of 20203200131232 is 23213100230202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×202032001312322 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203200131199 and 20203200131208.

It is not an unprimeable number, because it can be changed into a prime (20203200131237) 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, 206680018 + ... + 206777745.

It is an arithmetic number, because the mean of its divisors is an integer number (1107033163110).

Almost surely, 220203200131232 is an apocalyptic number.

It is an amenable number.

20203200131232 is an abundant number, since it is smaller than the sum of its proper divisors (32934391698048).

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

20203200131232 is a wasteful number, since it uses less digits than its factorization.

20203200131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413458285 (or 413458277 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20203200131232 its reverse (23213100230202), we get a palindrome (43416300361434).

The spelling of 20203200131232 in words is "twenty trillion, two hundred three billion, two hundred million, one hundred thirty-one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 509 1018 1527 2036 3054 4072 6108 8144 12216 16288 24432 48864 413457763 826915526 1240373289 1653831052 2480746578 3307662104 4961493156 6615324208 9922986312 13230648416 19845972624 39691945248 210450001367 420900002734 631350004101 841800005468 1262700008202 1683600010936 2525400016404 3367200021872 5050800032808 6734400043744 10101600065616 20203200131232