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124640052 = 22347223991
BaseRepresentation
bin1110110110111…
…01101100110100
322200112101000020
413123131230310
5223401440202
620211245140
73042265035
oct733355464
9280471006
10124640052
11643a0a09
12358a97b0
131ca8cc14
14127a6a8c
15ae205bc
hex76ddb34

124640052 has 48 divisors (see below), whose sum is σ = 298647552. Its totient is φ = 40439520.

The previous prime is 124639993. The next prime is 124640077. The reversal of 124640052 is 250046421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125277 + ... + 126267.

It is an arithmetic number, because the mean of its divisors is an integer number (6221824).

Almost surely, 2124640052 is an apocalyptic number.

124640052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124640052 is an abundant number, since it is smaller than the sum of its proper divisors (174007500).

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

124640052 is a wasteful number, since it uses less digits than its factorization.

124640052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 124640052 is about 11164.2309184287. The cubic root of 124640052 is about 499.5196079281.

Adding to 124640052 its reverse (250046421), we get a palindrome (374686473).

The spelling of 124640052 in words is "one hundred twenty-four million, six hundred forty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 47 94 141 188 223 282 446 564 669 892 991 1338 1982 2676 2973 3964 5946 10481 11892 20962 31443 41924 46577 62886 93154 125772 139731 186308 220993 279462 441986 558924 662979 883972 1325958 2651916 10386671 20773342 31160013 41546684 62320026 124640052