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124344420 = 22353779709
BaseRepresentation
bin1110110100101…
…01100001100100
322122222100110220
413122111201210
5223313010140
620201044340
73036624114
oct732254144
9278870426
10124344420
1164209892
12357866b0
131c9b84a5
141272b044
15adb2bd0
hex7695864

124344420 has 96 divisors (see below), whose sum is σ = 362611200. Its totient is φ = 31809024.

The previous prime is 124344419. The next prime is 124344421. The reversal of 124344420 is 24443421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124344419) and next prime (124344421).

It is not an unprimeable number, because it can be changed into a prime (124344421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175026 + ... + 175734.

It is an arithmetic number, because the mean of its divisors is an integer number (3777200).

Almost surely, 2124344420 is an apocalyptic number.

124344420 is a gapful number since it is divisible by the number (10) 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 124344420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181305600).

124344420 is an abundant number, since it is smaller than the sum of its proper divisors (238266780).

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

124344420 is a wasteful number, since it uses less digits than its factorization.

124344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 124344420 is about 11150.9829163173. The cubic root of 124344420 is about 499.1243607403.

Adding to 124344420 its reverse (24443421), we get a palindrome (148787841).

Subtracting from 124344420 its reverse (24443421), we obtain a palindrome (99900999).

The spelling of 124344420 in words is "one hundred twenty-four million, three hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 79 111 148 158 185 222 237 316 370 395 444 474 555 709 740 790 948 1110 1185 1418 1580 2127 2220 2370 2836 2923 3545 4254 4740 5846 7090 8508 8769 10635 11692 14180 14615 17538 21270 26233 29230 35076 42540 43845 52466 56011 58460 78699 87690 104932 112022 131165 157398 168033 175380 224044 262330 280055 314796 336066 393495 524660 560110 672132 786990 840165 1120220 1573980 1680330 2072407 3360660 4144814 6217221 8289628 10362035 12434442 20724070 24868884 31086105 41448140 62172210 124344420