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131353630242 = 2339821549767
BaseRepresentation
bin111101001010101001…
…0010101011000100010
3110120001021000210020020
41322111102111120202
54123003012131432
6140202032054310
712330031302132
oct1722522253042
9416037023206
10131353630242
115078577760a
122155a094396
13c504469383
14650118aac2
15363bae922c
hex1e95495622

131353630242 has 16 divisors (see below), whose sum is σ = 262714335552. Its totient is φ = 43783364240.

The previous prime is 131353630237. The next prime is 131353630267. The reversal of 131353630242 is 242036353131.

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 7 ways as a sum of consecutive naturals, for example, 35958 + ... + 513809.

It is an arithmetic number, because the mean of its divisors is an integer number (16419645972).

Almost surely, 2131353630242 is an apocalyptic number.

131353630242 is an abundant number, since it is smaller than the sum of its proper divisors (131360705310).

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

131353630242 is a wasteful number, since it uses less digits than its factorization.

131353630242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589593.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 131353630242 its reverse (242036353131), we get a palindrome (373389983373).

The spelling of 131353630242 in words is "one hundred thirty-one billion, three hundred fifty-three million, six hundred thirty thousand, two hundred forty-two".

Divisors: 1 2 3 6 39821 79642 119463 238926 549767 1099534 1649301 3298602 21892271707 43784543414 65676815121 131353630242