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125033381 = 1171915809
BaseRepresentation
bin1110111001111…
…01101110100101
322201021100112222
413130331232211
5224002032011
620223522125
73045523544
oct734755645
9281240488
10125033381
116463a480
1235a59345
131cb99c65
141286a15b
15ae9bddb
hex773dba5

125033381 has 8 divisors (see below), whose sum is σ = 136598400. Its totient is φ = 113501440.

The previous prime is 125033333. The next prime is 125033383. The reversal of 125033381 is 183330521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125033381 - 210 = 125032357 is a prime.

It is a super-2 number, since 2×1250333812 = 31266692728582322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125033381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125033383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (17074800).

Almost surely, 2125033381 is an apocalyptic number.

125033381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125033381 is a deficient number, since it is larger than the sum of its proper divisors (11565019).

125033381 is a wasteful number, since it uses less digits than its factorization.

125033381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16539.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 125033381 is about 11181.8326315502. The cubic root of 125033381 is about 500.0445040387.

The spelling of 125033381 in words is "one hundred twenty-five million, thirty-three thousand, three hundred eighty-one".

Divisors: 1 11 719 7909 15809 173899 11366671 125033381