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125212316 = 2231303079
BaseRepresentation
bin1110111011010…
…01011010011100
322201121110000012
413131221122130
5224023243231
620231422352
73050200325
oct735513234
9281543005
10125212316
1164751959
1235b249b8
131cc30538
14128b544c
15aed4e2b
hex776969c

125212316 has 6 divisors (see below), whose sum is σ = 219121560. Its totient is φ = 62606156.

The previous prime is 125212313. The next prime is 125212357. The reversal of 125212316 is 613212521.

It is a super-3 number, since 3×1252123163 (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125212291 and 125212300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125212313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651536 + ... + 15651543.

It is an arithmetic number, because the mean of its divisors is an integer number (36520260).

Almost surely, 2125212316 is an apocalyptic number.

It is an amenable number.

125212316 is a deficient number, since it is larger than the sum of its proper divisors (93909244).

125212316 is a wasteful number, since it uses less digits than its factorization.

125212316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303083 (or 31303081 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 125212316 is about 11189.8309191873. The cubic root of 125212316 is about 500.2829278734.

Adding to 125212316 its reverse (613212521), we get a palindrome (738424837).

The spelling of 125212316 in words is "one hundred twenty-five million, two hundred twelve thousand, three hundred sixteen".

Divisors: 1 2 4 31303079 62606158 125212316