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131001333 = 3192778297
BaseRepresentation
bin1111100111011…
…10101111110101
3100010111120001020
413303232233311
5232014020313
620555451353
73150331041
oct763565765
9303446036
10131001333
1167a46271
1237a56b59
13211a94a8
1413581021
15b77a323
hex7ceebf5

131001333 has 16 divisors (see below), whose sum is σ = 184547520. Its totient is φ = 82429056.

The previous prime is 131001331. The next prime is 131001359. The reversal of 131001333 is 333100131.

It is not a de Polignac number, because 131001333 - 21 = 131001331 is a prime.

It is a super-2 number, since 2×1310013332 = 34322698495553778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11641 + ... + 19937.

It is an arithmetic number, because the mean of its divisors is an integer number (11534220).

Almost surely, 2131001333 is an apocalyptic number.

It is an amenable number.

131001333 is a deficient number, since it is larger than the sum of its proper divisors (53546187).

131001333 is a wasteful number, since it uses less digits than its factorization.

131001333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 131001333 is about 11445.5813744868. The cubic root of 131001333 is about 507.8770304481.

Adding to 131001333 its reverse (333100131), we get a palindrome (464101464).

The spelling of 131001333 in words is "one hundred thirty-one million, one thousand, three hundred thirty-three".

Divisors: 1 3 19 57 277 831 5263 8297 15789 24891 157643 472929 2298269 6894807 43667111 131001333