Search a number
-
+
131000030310021 = 31579125197220889
BaseRepresentation
bin11101110010010011010010…
…010001011010111010000101
3122011211110222100110121210020
4131302103102101122322011
5114132301030224410041
61142340325542045353
736410303605120065
oct3562232221327205
9564743870417706
10131000030310021
1138816889a45524
1212838825119859
135813332c03b42
14244c6146553a5
1510229287ea866
hex7724d245ae85

131000030310021 has 16 divisors (see below), whose sum is σ = 174779512910400. Its totient is φ = 87276952015488.

The previous prime is 131000030310001. The next prime is 131000030310041. The reversal of 131000030310021 is 120013030000131.

Adding to 131000030310021 its reverse (120013030000131), we get a palindrome (251013060310152).

It is an interprime number because it is at equal distance from previous prime (131000030310001) and next prime (131000030310041).

It is a de Polignac number, because none of the positive numbers 2k-131000030310021 is a prime.

It is a super-2 number, since 2×1310000303100212 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000030310001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592947745 + ... + 593168633.

It is an arithmetic number, because the mean of its divisors is an integer number (10923719556900).

Almost surely, 2131000030310021 is an apocalyptic number.

It is an amenable number.

131000030310021 is a deficient number, since it is larger than the sum of its proper divisors (43779482600379).

131000030310021 is a wasteful number, since it uses less digits than its factorization.

131000030310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347668.

The product of its (nonzero) digits is 54, while the sum is 15.

The spelling of 131000030310021 in words is "one hundred thirty-one trillion, thirty million, three hundred ten thousand, twenty-one".

Divisors: 1 3 1579 4737 125197 220889 375591 662667 197686063 348783731 593058189 1046351193 27654640133 82963920399 43666676770007 131000030310021