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29213158213 = 61694968917
BaseRepresentation
bin11011001101001111…
…010110101101000101
32210101220201012100201
4123031033112231011
5434312032030323
621230443210501
72052633514321
oct331517265505
983356635321
1029213158213
1111431080168
1257b3516a31
1329a736b445
1415b1b46981
15b5ea008ad
hex6cd3d6b45

29213158213 has 8 divisors (see below), whose sum is σ = 29696766200. Its totient is φ = 28729702080.

The previous prime is 29213158193. The next prime is 29213158253. The reversal of 29213158213 is 31285131292.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1449934084 + 27763224129 = 38078^2 + 166623^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29213158213 is a prime.

It is a super-2 number, since 2×292131582132 (a number of 22 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 (29213158253) 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, 389431 + ... + 458347.

It is an arithmetic number, because the mean of its divisors is an integer number (3712095775).

Almost surely, 229213158213 is an apocalyptic number.

It is an amenable number.

29213158213 is a deficient number, since it is larger than the sum of its proper divisors (483607987).

29213158213 is an equidigital number, since it uses as much as digits as its factorization.

29213158213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75927.

The product of its digits is 25920, while the sum is 37.

The spelling of 29213158213 in words is "twenty-nine billion, two hundred thirteen million, one hundred fifty-eight thousand, two hundred thirteen".

Divisors: 1 61 6949 68917 423889 4203937 478904233 29213158213