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124720484 = 227219107313
BaseRepresentation
bin1110110111100…
…01010101100100
322200200110100012
413123301111210
5223412023414
620213105352
73043051400
oct733612544
9280613305
10124720484
1164446389
1235928258
131caba705
14127c8100
15ae3933e
hex76f1564

124720484 has 72 divisors (see below), whose sum is σ = 270617760. Its totient is φ = 50004864.

The previous prime is 124720459. The next prime is 124720489. The reversal of 124720484 is 484027421.

It is a self number, because there is not a number n which added to its sum of digits gives 124720484.

It is not an unprimeable number, because it can be changed into a prime (124720489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398312 + ... + 398624.

It is an arithmetic number, because the mean of its divisors is an integer number (3758580).

Almost surely, 2124720484 is an apocalyptic number.

124720484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124720484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135308880).

124720484 is an abundant number, since it is smaller than the sum of its proper divisors (145897276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124720484 is a wasteful number, since it uses less digits than its factorization.

124720484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 124720484 is about 11167.8325560513. The cubic root of 124720484 is about 499.6270338617.

The spelling of 124720484 in words is "one hundred twenty-four million, seven hundred twenty thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 107 133 196 214 266 313 428 532 626 749 931 1252 1498 1862 2033 2191 2996 3724 4066 4382 5243 5947 8132 8764 10486 11894 14231 15337 20972 23788 28462 30674 33491 41629 56924 61348 66982 83258 99617 133964 166516 199234 234437 291403 398468 468874 582806 636329 937748 1165612 1272658 1641059 2545316 3282118 4454303 6564236 8908606 17817212 31180121 62360242 124720484