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102625624540 = 225191907141619
BaseRepresentation
bin101111110010011110…
…1101100000111011100
3100210220011012220000001
41133210331230013130
53140134124441130
6115051235144044
710262105262355
oct1374475540734
9323804186001
10102625624540
113a58354273a
1217a81145024
1398a6784c2a
144d77a52d2c
152a099cc6ca
hex17e4f6c1dc

102625624540 has 48 divisors (see below), whose sum is σ = 226977206400. Its totient is φ = 38869042752.

The previous prime is 102625624457. The next prime is 102625624553. The reversal of 102625624540 is 45426526201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102625624540.

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, 653851 + ... + 795469.

It is an arithmetic number, because the mean of its divisors is an integer number (4728691800).

Almost surely, 2102625624540 is an apocalyptic number.

102625624540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102625624540 is an abundant number, since it is smaller than the sum of its proper divisors (124351581860).

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

102625624540 is a wasteful number, since it uses less digits than its factorization.

102625624540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143554 (or 143552 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 102625624540 in words is "one hundred two billion, six hundred twenty-five million, six hundred twenty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1907 3814 7628 9535 19070 36233 38140 72466 141619 144932 181165 283238 362330 566476 708095 724660 1416190 2690761 2832380 5381522 10763044 13453805 26907610 53815220 270067433 540134866 1080269732 1350337165 2700674330 5131281227 5401348660 10262562454 20525124908 25656406135 51312812270 102625624540