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50138625 = 3531931227
BaseRepresentation
bin1011111101000…
…0111000000001
310111100022021010
42333100320001
5100313414000
64550351133
71146112515
oct277207001
9114308233
1050138625
1126335989
121495b4a9
13a506534
146932145
154605d50
hex2fd0e01

50138625 has 64 divisors (see below), whose sum is σ = 91054080. Its totient is φ = 24408000.

The previous prime is 50138623. The next prime is 50138633. The reversal of 50138625 is 52683105.

It is not a de Polignac number, because 50138625 - 21 = 50138623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50138592 and 50138601.

It is not an unprimeable number, because it can be changed into a prime (50138623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220762 + ... + 220988.

It is an arithmetic number, because the mean of its divisors is an integer number (1422720).

Almost surely, 250138625 is an apocalyptic number.

It is an amenable number.

50138625 is a deficient number, since it is larger than the sum of its proper divisors (40915455).

50138625 is a wasteful number, since it uses less digits than its factorization.

50138625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 50138625 is about 7080.8632948250. The cubic root of 50138625 is about 368.7433016115.

The spelling of 50138625 in words is "fifty million, one hundred thirty-eight thousand, six hundred twenty-five".

Divisors: 1 3 5 15 19 25 31 57 75 93 95 125 155 227 285 375 465 475 589 681 775 1135 1425 1767 2325 2375 2945 3405 3875 4313 5675 7037 7125 8835 11625 12939 14725 17025 21111 21565 28375 35185 44175 64695 73625 85125 105555 107825 133703 175925 220875 323475 401109 527775 539125 668515 879625 1617375 2005545 2638875 3342575 10027725 16712875 50138625