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131210042451 = 3145929977163
BaseRepresentation
bin111101000110010111…
…0100101110001010011
3110112200020211202210220
41322030232211301103
54122204232324301
6140135502324123
712323335646625
oct1721456456123
9415606752726
10131210042451
1150711714a14
1221519b89643
13c4b07a3c97
1464ca090c15
15362e1d4936
hex1e8cba5c53

131210042451 has 8 divisors (see below), whose sum is σ = 175066637760. Its totient is φ = 87413404392.

The previous prime is 131210042449. The next prime is 131210042473. The reversal of 131210042451 is 154240012131.

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

It is not a de Polignac number, because 131210042451 - 21 = 131210042449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131210042401) 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, 14984205 + ... + 14992958.

It is an arithmetic number, because the mean of its divisors is an integer number (21883329720).

Almost surely, 2131210042451 is an apocalyptic number.

131210042451 is a deficient number, since it is larger than the sum of its proper divisors (43856595309).

131210042451 is a wasteful number, since it uses less digits than its factorization.

131210042451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29978625.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 131210042451 its reverse (154240012131), we get a palindrome (285450054582).

The spelling of 131210042451 in words is "one hundred thirty-one billion, two hundred ten million, forty-two thousand, four hundred fifty-one".

Divisors: 1 3 1459 4377 29977163 89931489 43736680817 131210042451