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10231202220 = 2235401425237
BaseRepresentation
bin10011000011101001…
…11100000110101100
3222102000210220221120
421201310330012230
5131423141432340
64411122100540
7511352532621
oct114164740654
928360726846
1010231202220
114380279728
121b964aa750
13c7087aa15
146d0b48348
153ed32c4d0
hex261d3c1ac

10231202220 has 48 divisors (see below), whose sum is σ = 28718873568. Its totient is φ = 2721510400.

The previous prime is 10231202183. The next prime is 10231202243. The reversal of 10231202220 is 2220213201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10231202220.

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, 188559 + ... + 236678.

It is an arithmetic number, because the mean of its divisors is an integer number (598309866).

Almost surely, 210231202220 is an apocalyptic number.

10231202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231202220 is an abundant number, since it is smaller than the sum of its proper divisors (18487671348).

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

10231202220 is a wasteful number, since it uses less digits than its factorization.

10231202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425650 (or 425648 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10231202220 its reverse (2220213201), we get a palindrome (12451415421).

The spelling of 10231202220 in words is "ten billion, two hundred thirty-one million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 401 802 1203 1604 2005 2406 4010 4812 6015 8020 12030 24060 425237 850474 1275711 1700948 2126185 2551422 4252370 5102844 6378555 8504740 12757110 25514220 170520037 341040074 511560111 682080148 852600185 1023120222 1705200370 2046240444 2557800555 3410400740 5115601110 10231202220