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126130552 = 2315766319
BaseRepresentation
bin1111000010010…
…01100101111000
322210100002120221
413201021211320
5224242134202
620303225424
73061043362
oct741114570
9283302527
10126130552
1165219829
12362a8274
1320192482
1412a73d32
15b117037
hex7849978

126130552 has 8 divisors (see below), whose sum is σ = 236494800. Its totient is φ = 63065272.

The previous prime is 126130519. The next prime is 126130559. The reversal of 126130552 is 255031621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1261305522 = 31817832295649408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126130559) 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 as a sum of consecutive naturals, namely, 7883152 + ... + 7883167.

It is an arithmetic number, because the mean of its divisors is an integer number (29561850).

Almost surely, 2126130552 is an apocalyptic number.

It is an amenable number.

126130552 is a deficient number, since it is larger than the sum of its proper divisors (110364248).

126130552 is a wasteful number, since it uses less digits than its factorization.

126130552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766325 (or 15766321 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 126130552 is about 11230.7859030435. The cubic root of 126130552 is about 501.5028808391.

It can be divided in two parts, 1261 and 30552, that added together give a palindrome (31813).

The spelling of 126130552 in words is "one hundred twenty-six million, one hundred thirty thousand, five hundred fifty-two".

Divisors: 1 2 4 8 15766319 31532638 63065276 126130552