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124992431 = 1925392591
BaseRepresentation
bin1110111001100…
…11101110101111
322201012021101022
413130303232233
5223444224211
620223004355
73045263264
oct734635657
9281167338
10124992431
1164611733
1235a396bb
131cb84425
141285926b
15ae8ebdb
hex7733baf

124992431 has 8 divisors (see below), whose sum is σ = 131673600. Its totient is φ = 118321560.

The previous prime is 124992421. The next prime is 124992437. The reversal of 124992431 is 134299421.

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 124992431 - 26 = 124992367 is a prime.

It is a super-2 number, since 2×1249924312 = 31246215614579522, 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 = 124992391 and 124992400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124992437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46946 + ... + 49536.

It is an arithmetic number, because the mean of its divisors is an integer number (16459200).

Almost surely, 2124992431 is an apocalyptic number.

124992431 is a deficient number, since it is larger than the sum of its proper divisors (6681169).

124992431 is a wasteful number, since it uses less digits than its factorization.

124992431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149.

The product of its digits is 15552, while the sum is 35.

The square root of 124992431 is about 11180.0013864042. The cubic root of 124992431 is about 499.9899077963.

The spelling of 124992431 in words is "one hundred twenty-four million, nine hundred ninety-two thousand, four hundred thirty-one".

Divisors: 1 19 2539 2591 48241 49229 6578549 124992431