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20231142200 = 2352131772181
BaseRepresentation
bin10010110101110111…
…101011101100111000
31221012221110111201222
4102311313223230320
5312413133022300
613143303331212
71314226604603
oct226567535470
957187414658
1020231142200
118641a52635
123b07450b08
131ba5546a79
14d9cc9333a
157d61c7785
hex4b5debb38

20231142200 has 48 divisors (see below), whose sum is σ = 47396531160. Its totient is φ = 8030672000.

The previous prime is 20231142167. The next prime is 20231142223. The reversal of 20231142200 is 224113202.

It is a super-2 number, since 2×202311422002 (a number of 21 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 11 ways as a sum of consecutive naturals, for example, 359891 + ... + 412290.

Almost surely, 220231142200 is an apocalyptic number.

20231142200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20231142200 is an abundant number, since it is smaller than the sum of its proper divisors (27165388960).

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

20231142200 is a wasteful number, since it uses less digits than its factorization.

20231142200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772328 (or 772319 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20231142200 its reverse (224113202), we get a palindrome (20455255402).

The spelling of 20231142200 in words is "twenty billion, two hundred thirty-one million, one hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 131 200 262 524 655 1048 1310 2620 3275 5240 6550 13100 26200 772181 1544362 3088724 3860905 6177448 7721810 15443620 19304525 30887240 38609050 77218100 101155711 154436200 202311422 404622844 505778555 809245688 1011557110 2023114220 2528892775 4046228440 5057785550 10115571100 20231142200