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102200202020 = 22571861392263
BaseRepresentation
bin101111100101110011…
…0110101001100100100
3100202210111201012000102
41133023212311030210
53133301222431040
6114541121003232
710245421245440
oct1371346651444
9322714635012
10102200202020
113a385393484
1217982783518
1398395b2027
144d37351820
1529d2496515
hex17cb9b5324

102200202020 has 48 divisors (see below), whose sum is σ = 245412910848. Its totient is φ = 35021151360.

The previous prime is 102200202011. The next prime is 102200202023. The reversal of 102200202020 is 20202002201.

102200202020 is a modest number, since divided by 202020 gives 102200 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 102200201992 and 102200202010.

It is not an unprimeable number, because it can be changed into a prime (102200202023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64409 + ... + 456671.

It is an arithmetic number, because the mean of its divisors is an integer number (5112768976).

Almost surely, 2102200202020 is an apocalyptic number.

102200202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102200202020 is an abundant number, since it is smaller than the sum of its proper divisors (143212708828).

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

102200202020 is a wasteful number, since it uses less digits than its factorization.

102200202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394140 (or 394138 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 102200202020 its reverse (20202002201), we get a palindrome (122402204221).

The spelling of 102200202020 in words is "one hundred two billion, two hundred million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1861 3722 7444 9305 13027 18610 26054 37220 52108 65135 130270 260540 392263 784526 1569052 1961315 2745841 3922630 5491682 7845260 10983364 13729205 27458410 54916820 730001443 1460002886 2920005772 3650007215 5110010101 7300014430 10220020202 14600028860 20440040404 25550050505 51100101010 102200202020