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124344020 = 22531119991
BaseRepresentation
bin1110110100101…
…01011011010100
322122222022221002
413122111123110
5223313002040
620201042432
73036623003
oct732253324
9278868832
10124344020
1164209559
1235786418
131c9b8258
141272ac3a
15adb2a15
hex76956d4

124344020 has 24 divisors (see below), whose sum is σ = 261975168. Its totient is φ = 49575200.

The previous prime is 124344019. The next prime is 124344041. The reversal of 124344020 is 20443421.

It is a super-2 number, since 2×1243440202 = 30922870619520800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 124343983 and 124344001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3776 + ... + 16215.

It is an arithmetic number, because the mean of its divisors is an integer number (10915632).

Almost surely, 2124344020 is an apocalyptic number.

124344020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124344020 is an abundant number, since it is smaller than the sum of its proper divisors (137631148).

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

124344020 is a wasteful number, since it uses less digits than its factorization.

124344020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311 (or 20309 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 124344020 is about 11150.9649806642. The cubic root of 124344020 is about 499.1238255334.

Adding to 124344020 its reverse (20443421), we get a palindrome (144787441).

The spelling of 124344020 in words is "one hundred twenty-four million, three hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 311 622 1244 1555 3110 6220 19991 39982 79964 99955 199910 399820 6217201 12434402 24868804 31086005 62172010 124344020