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124628420 = 22571098167
BaseRepresentation
bin1110110110110…
…10110111000100
322200111210001102
413123122313010
5223401102140
620211115232
73042216110
oct733326704
9280453042
10124628420
11643931a4
12358a2b18
131ca87837
14127a2740
15ae1be15
hex76dadc4

124628420 has 48 divisors (see below), whose sum is σ = 301889280. Its totient is φ = 42332544.

The previous prime is 124628407. The next prime is 124628431. The reversal of 124628420 is 24826421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11177 + ... + 19343.

It is an arithmetic number, because the mean of its divisors is an integer number (6289360).

Almost surely, 2124628420 is an apocalyptic number.

124628420 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 124628420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150944640).

124628420 is an abundant number, since it is smaller than the sum of its proper divisors (177260860).

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

124628420 is a wasteful number, since it uses less digits than its factorization.

124628420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292 (or 8290 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 124628420 is about 11163.7099568199. The cubic root of 124628420 is about 499.5040682661.

The spelling of 124628420 in words is "one hundred twenty-four million, six hundred twenty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 109 140 218 436 545 763 1090 1526 2180 3052 3815 7630 8167 15260 16334 32668 40835 57169 81670 114338 163340 228676 285845 571690 890203 1143380 1780406 3560812 4451015 6231421 8902030 12462842 17804060 24925684 31157105 62314210 124628420