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126531444642 = 23191109924953
BaseRepresentation
bin111010111010111011…
…1001001111110100010
3110002121012020101011120
41311311313021332202
54033114022212032
6134043331553110
712066365351031
oct1656567117642
9402535211146
10126531444642
114973077a159
122063315b796
13bc163c7905
1461a4974718
1534585b862c
hex1d75dc9fa2

126531444642 has 16 divisors (see below), whose sum is σ = 266381988960. Its totient is φ = 39957298272.

The previous prime is 126531444539. The next prime is 126531444643. The reversal of 126531444642 is 246444135621.

It is a junction number, because it is equal to n+sod(n) for n = 126531444594 and 126531444603.

It is not an unprimeable number, because it can be changed into a prime (126531444643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554962363 + ... + 554962590.

It is an arithmetic number, because the mean of its divisors is an integer number (16648874310).

Almost surely, 2126531444642 is an apocalyptic number.

126531444642 is an abundant number, since it is smaller than the sum of its proper divisors (139850544318).

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

126531444642 is a wasteful number, since it uses less digits than its factorization.

126531444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109924977.

The product of its digits is 552960, while the sum is 42.

The spelling of 126531444642 in words is "one hundred twenty-six billion, five hundred thirty-one million, four hundred forty-four thousand, six hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 1109924953 2219849906 3329774859 6659549718 21088574107 42177148214 63265722321 126531444642