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25493650084 = 2271078509229
BaseRepresentation
bin10111101111100010…
…100011101010100100
32102210200210121102101
4113233202203222210
5404202333300314
615413413221444
71561520310310
oct275742435244
972720717371
1025493650084
11a8a2556701
124b35931884
1325338a7266
14133bb68b40
159e31d4174
hex5ef8a3aa4

25493650084 has 24 divisors (see below), whose sum is σ = 51463823040. Its totient is φ = 10823738016.

The previous prime is 25493650073. The next prime is 25493650139. The reversal of 25493650084 is 48005639452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4251619 + ... + 4257610.

It is an arithmetic number, because the mean of its divisors is an integer number (2144325960).

Almost surely, 225493650084 is an apocalyptic number.

It is an amenable number.

25493650084 is an abundant number, since it is smaller than the sum of its proper divisors (25970172956).

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

25493650084 is a wasteful number, since it uses less digits than its factorization.

25493650084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509347 (or 8509345 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 25493650084 in words is "twenty-five billion, four hundred ninety-three million, six hundred fifty thousand, eighty-four".

Divisors: 1 2 4 7 14 28 107 214 428 749 1498 2996 8509229 17018458 34036916 59564603 119129206 238258412 910487503 1820975006 3641950012 6373412521 12746825042 25493650084