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125378385 = 35112371867
BaseRepresentation
bin1110111100100…
…01111101010001
322201220212210220
413132101331101
5224044102020
620235143253
73051461436
oct736217521
9281825726
10125378385
1164855700
1235ba4b29
131cc8acc2
1412919b8d
15b019240
hex7791f51

125378385 has 48 divisors (see below), whose sum is σ = 226580928. Its totient is φ = 59114880.

The previous prime is 125378381. The next prime is 125378399. The reversal of 125378385 is 583873521.

It is not a de Polignac number, because 125378385 - 22 = 125378381 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125378381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66222 + ... + 68088.

It is an arithmetic number, because the mean of its divisors is an integer number (4720436).

Almost surely, 2125378385 is an apocalyptic number.

125378385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125378385 is a deficient number, since it is larger than the sum of its proper divisors (101202543).

125378385 is a wasteful number, since it uses less digits than its factorization.

125378385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1923 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 125378385 is about 11197.2489924981. The cubic root of 125378385 is about 500.5040051203.

The spelling of 125378385 in words is "one hundred twenty-five million, three hundred seventy-eight thousand, three hundred eighty-five".

Divisors: 1 3 5 11 15 33 37 55 111 121 165 185 363 407 555 605 1221 1815 1867 2035 4477 5601 6105 9335 13431 20537 22385 28005 61611 67155 69079 102685 207237 225907 308055 345395 677721 759869 1036185 1129535 2279607 3388605 3799345 8358559 11398035 25075677 41792795 125378385