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102401203220 = 225311091515259
BaseRepresentation
bin101111101011110010…
…1100101110000010100
3100210022111221002211022
41133113211211300110
53134204202000340
6115013101100312
710253411602661
oct1372745456024
9323274832738
10102401203220
113a47889a678
1217a19b57698
13986c129c54
144d55d14a68
1529e4e4c3b5
hex17d7965c14

102401203220 has 48 divisors (see below), whose sum is σ = 224016038400. Its totient is φ = 39275487360.

The previous prime is 102401203211. The next prime is 102401203231. The reversal of 102401203220 is 22302104201.

It is a congruent number.

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, 690050 + ... + 825209.

It is an arithmetic number, because the mean of its divisors is an integer number (4667000800).

Almost surely, 2102401203220 is an apocalyptic number.

102401203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102401203220 is an abundant number, since it is smaller than the sum of its proper divisors (121614835180).

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

102401203220 is a wasteful number, since it uses less digits than its factorization.

102401203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515408 (or 1515406 counting only the distinct ones).

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

Adding to 102401203220 its reverse (22302104201), we get a palindrome (124703307421).

The spelling of 102401203220 in words is "one hundred two billion, four hundred one million, two hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 109 124 155 218 310 436 545 620 1090 2180 3379 6758 13516 16895 33790 67580 1515259 3030518 6061036 7576295 15152590 30305180 46973029 93946058 165163231 187892116 234865145 330326462 469730290 660652924 825816155 939460580 1651632310 3303264620 5120060161 10240120322 20480240644 25600300805 51200601610 102401203220