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124948133 = 1237101009
BaseRepresentation
bin1110111001010…
…00111010100101
322201010000121122
413130220322211
5223441320013
620222023325
73045020162
oct734507245
9281100548
10124948133
1164591422
1235a17b45
131cb6a20b
1412847069
15ae81a08
hex7728ea5

124948133 has 4 divisors (see below), whose sum is σ = 125050380. Its totient is φ = 124845888.

The previous prime is 124948111. The next prime is 124948141. The reversal of 124948133 is 331849421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331849421 = 1917465759.

It can be written as a sum of positive squares in 2 ways, for example, as 43533604 + 81414529 = 6598^2 + 9023^2 .

It is a cyclic number.

It is not a de Polignac number, because 124948133 - 212 = 124944037 is a prime.

It is a super-2 number, since 2×1249481332 = 31224071880371378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124948093 and 124948102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124948183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49268 + ... + 51741.

It is an arithmetic number, because the mean of its divisors is an integer number (31262595).

Almost surely, 2124948133 is an apocalyptic number.

It is an amenable number.

124948133 is a deficient number, since it is larger than the sum of its proper divisors (102247).

124948133 is a wasteful number, since it uses less digits than its factorization.

124948133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102246.

The product of its digits is 20736, while the sum is 35.

The square root of 124948133 is about 11178.0200840757. The cubic root of 124948133 is about 499.9308344327.

The spelling of 124948133 in words is "one hundred twenty-four million, nine hundred forty-eight thousand, one hundred thirty-three".

Divisors: 1 1237 101009 124948133