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131035232461 = 720039345641
BaseRepresentation
bin111101000001001001…
…1101111100011001101
3110112020001220111120211
41322002103233203031
54121330004414321
6140110255442421
712316114045540
oct1720223574315
9415201814524
10131035232461
1150631a77651
122148b526411
13c4834c9513
1464b0b88857
15361dba40e1
hex1e824ef8cd

131035232461 has 8 divisors (see below), whose sum is σ = 149829332544. Its totient is φ = 112259827680.

The previous prime is 131035232459. The next prime is 131035232507. The reversal of 131035232461 is 164232530131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131035232461 - 21 = 131035232459 is a prime.

It is a super-2 number, since 2×1310352324612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131035232431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4658800 + ... + 4686841.

It is an arithmetic number, because the mean of its divisors is an integer number (18728666568).

Almost surely, 2131035232461 is an apocalyptic number.

It is an amenable number.

131035232461 is a deficient number, since it is larger than the sum of its proper divisors (18794100083).

131035232461 is an equidigital number, since it uses as much as digits as its factorization.

131035232461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9347651.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 131035232461 its reverse (164232530131), we get a palindrome (295267762592).

The spelling of 131035232461 in words is "one hundred thirty-one billion, thirty-five million, two hundred thirty-two thousand, four hundred sixty-one".

Divisors: 1 7 2003 14021 9345641 65419487 18719318923 131035232461