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25139014000 = 245319661553
BaseRepresentation
bin10111011010011001…
…101110100101110000
32101212222111020011121
4113122121232211300
5402441041422000
615314304152024
71546653044002
oct273231564560
971788436147
1025139014000
11a730355331
124a57008614
1324a8289b19
141306a12372
159c1ed1b1a
hex5da66e970

25139014000 has 80 divisors (see below), whose sum is σ = 63985502880. Its totient is φ = 9526348800.

The previous prime is 25139013989. The next prime is 25139014031. The reversal of 25139014000 is 41093152.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×251390140004 (a number of 43 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 292777 + ... + 368776.

It is an arithmetic number, because the mean of its divisors is an integer number (799818786).

Almost surely, 225139014000 is an apocalyptic number.

25139014000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25139014000 is an abundant number, since it is smaller than the sum of its proper divisors (38846488880).

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

25139014000 is a wasteful number, since it uses less digits than its factorization.

25139014000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661595 (or 661579 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 25139014000 in words is "twenty-five billion, one hundred thirty-nine million, fourteen thousand".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 125 152 190 200 250 304 380 400 475 500 760 950 1000 1520 1900 2000 2375 3800 4750 7600 9500 19000 38000 661553 1323106 2646212 3307765 5292424 6615530 10584848 12569507 13231060 16538825 25139014 26462120 33077650 50278028 52924240 62847535 66155300 82694125 100556056 125695070 132310600 165388250 201112112 251390140 264621200 314237675 330776500 502780280 628475350 661553000 1005560560 1256950700 1323106000 1571188375 2513901400 3142376750 5027802800 6284753500 12569507000 25139014000