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131033034 = 23211798377
BaseRepresentation
bin1111100111101…
…10011111001010
3100010120011112100
413303312133022
5232021024114
621000254230
73150522336
oct763663712
9303504470
10131033034
1167a68070
1237a71376
13211baa52
141358c7c6
15b784909
hex7cf67ca

131033034 has 48 divisors (see below), whose sum is σ = 313672320. Its totient is φ = 39199680.

The previous prime is 131033033. The next prime is 131033069. The reversal of 131033034 is 430330131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131032998 and 131033016.

It is not an unprimeable number, because it can be changed into a prime (131033033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11454 + ... + 19830.

It is an arithmetic number, because the mean of its divisors is an integer number (6534840).

Almost surely, 2131033034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131033034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156836160).

131033034 is an abundant number, since it is smaller than the sum of its proper divisors (182639286).

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

131033034 is a wasteful number, since it uses less digits than its factorization.

131033034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8475 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131033034 is about 11446.9661482858. The cubic root of 131033034 is about 507.9179941820.

Adding to 131033034 its reverse (430330131), we get a palindrome (561363165).

The spelling of 131033034 in words is "one hundred thirty-one million, thirty-three thousand, thirty-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 79 99 158 198 237 474 711 869 1422 1738 2607 5214 7821 8377 15642 16754 25131 50262 75393 92147 150786 184294 276441 552882 661783 829323 1323566 1658646 1985349 3970698 5956047 7279613 11912094 14559226 21838839 43677678 65516517 131033034