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124924428 = 22328634021
BaseRepresentation
bin1110111001000…
…11001000001100
322201001211002200
413130203020030
5223440040203
620221321500
73044561106
oct734431014
9281054080
10124924428
1164575632
1235a06290
131cb5c4a5
141283c576
15ae799a3
hex772320c

124924428 has 36 divisors (see below), whose sum is σ = 316225728. Its totient is φ = 41582880.

The previous prime is 124924421. The next prime is 124924433. The reversal of 124924428 is 824429421.

124924428 is a `hidden beast` number, since 124 + 92 + 442 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1249244282 = 31212225422254368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 124924392 and 124924401.

It is not an unprimeable number, because it can be changed into a prime (124924421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29058 + ... + 33078.

It is an arithmetic number, because the mean of its divisors is an integer number (8784048).

Almost surely, 2124924428 is an apocalyptic number.

124924428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

124924428 is an abundant number, since it is smaller than the sum of its proper divisors (191301300).

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

124924428 is a wasteful number, since it uses less digits than its factorization.

124924428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894 (or 4889 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 124924428 is about 11176.9596939418. The cubic root of 124924428 is about 499.8992170203.

The spelling of 124924428 in words is "one hundred twenty-four million, nine hundred twenty-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 863 1726 2589 3452 4021 5178 7767 8042 10356 12063 15534 16084 24126 31068 36189 48252 72378 144756 3470123 6940246 10410369 13880492 20820738 31231107 41641476 62462214 124924428