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125978500050 = 23521364604359
BaseRepresentation
bin111010101010011100…
…1110101101111010010
3110001011122202212210020
41311110321311233102
54031000444000200
6133512420244310
712046602403464
oct1652471655722
9401148685706
10125978500050
1149477640757
12204b9b40696
13bb58996070
14615135a134
153424c92ea0
hex1d54e75bd2

125978500050 has 48 divisors (see below), whose sum is σ = 336459506880. Its totient is φ = 31010091840.

The previous prime is 125978500019. The next prime is 125978500057. The reversal of 125978500050 is 50005879521.

125978500050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 125978499975 and 125978500011.

It is not an unprimeable number, because it can be changed into a prime (125978500057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32300230 + ... + 32304129.

It is an arithmetic number, because the mean of its divisors is an integer number (7009573060).

Almost surely, 2125978500050 is an apocalyptic number.

125978500050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125978500050 is an abundant number, since it is smaller than the sum of its proper divisors (210481006830).

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

125978500050 is a wasteful number, since it uses less digits than its factorization.

125978500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64604387 (or 64604382 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 125978500050 in words is "one hundred twenty-five billion, nine hundred seventy-eight million, five hundred thousand, fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 64604359 129208718 193813077 323021795 387626154 646043590 839856667 969065385 1615108975 1679713334 1938130770 2519570001 3230217950 4199283335 4845326925 5039140002 8398566670 9690653850 12597850005 20996416675 25195700010 41992833350 62989250025 125978500050