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131353123432 = 2371231255499
BaseRepresentation
bin111101001010101000…
…0011001101001101000
3110120001020002001000111
41322111100121221220
54123002344422212
6140202013144104
712330024061426
oct1722520315150
9416036061014
10131353123432
1150785460863
1221559a8b034
13c50431c79b
146501098116
15363ba48ea7
hex1e95419a68

131353123432 has 16 divisors (see below), whose sum is σ = 249755940000. Its totient is φ = 64751539440.

The previous prime is 131353123427. The next prime is 131353123439. The reversal of 131353123432 is 234321353131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131353123394 and 131353123403.

It is not an unprimeable number, because it can be changed into a prime (131353123439) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115627182 + ... + 115628317.

It is an arithmetic number, because the mean of its divisors is an integer number (15609746250).

Almost surely, 2131353123432 is an apocalyptic number.

It is an amenable number.

131353123432 is a deficient number, since it is larger than the sum of its proper divisors (118402816568).

131353123432 is a wasteful number, since it uses less digits than its factorization.

131353123432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231255576 (or 231255572 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

Adding to 131353123432 its reverse (234321353131), we get a palindrome (365674476563).

The spelling of 131353123432 in words is "one hundred thirty-one billion, three hundred fifty-three million, one hundred twenty-three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 71 142 284 568 231255499 462510998 925021996 1850043992 16419140429 32838280858 65676561716 131353123432