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102425201240 = 23541591058549
BaseRepresentation
bin101111101100100000…
…1001000101001011000
3100210101012002022220212
41133121001020221120
53134231322414430
6115015315310252
710254122563025
oct1373101105130
9323335068825
10102425201240
113a4903a074a
1217a25bab388
1398740b006b
144d591a054c
1529e70dcb95
hex17d9048a58

102425201240 has 64 divisors (see below), whose sum is σ = 240079140000. Its totient is φ = 39293301760.

The previous prime is 102425201201. The next prime is 102425201243. The reversal of 102425201240 is 42102524201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102425201243) 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, 432515 + ... + 626034.

Almost surely, 2102425201240 is an apocalyptic number.

102425201240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102425201240 is an abundant number, since it is smaller than the sum of its proper divisors (137653938760).

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

102425201240 is a wasteful number, since it uses less digits than its factorization.

102425201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058660 (or 1058656 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 102425201240 its reverse (42102524201), we get a palindrome (144527725441).

The spelling of 102425201240 in words is "one hundred two billion, four hundred twenty-five million, two hundred one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 59 82 118 164 205 236 295 328 410 472 590 820 1180 1640 2360 2419 4838 9676 12095 19352 24190 48380 96760 1058549 2117098 4234196 5292745 8468392 10585490 21170980 42341960 43400509 62454391 86801018 124908782 173602036 217002545 249817564 312271955 347204072 434005090 499635128 624543910 868010180 1249087820 1736020360 2498175640 2560630031 5121260062 10242520124 12803150155 20485040248 25606300310 51212600620 102425201240