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215022030413 = 239348783931
BaseRepresentation
bin1100100001000001001…
…1111100111001001101
3202120000020212220020012
43020100103330321031
512010331114433123
6242440232203005
721351306050021
oct3102023747115
9676006786205
10215022030413
118321036aa73
123580a539465
13173795ac878
14a59b1dc381
1558d718b378
hex32104fce4d

215022030413 has 4 divisors (see below), whose sum is σ = 224370814368. Its totient is φ = 205673246460.

The previous prime is 215022030401. The next prime is 215022030437. The reversal of 215022030413 is 314030220512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215022030413 - 214 = 215022014029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9348783931 = 215022030413 / (2 + 1 + 5 + 0 + 2 + 2 + 0 + 3 + 0 + 4 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215022039413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4674391943 + ... + 4674391988.

It is an arithmetic number, because the mean of its divisors is an integer number (56092703592).

Almost surely, 2215022030413 is an apocalyptic number.

215022030413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

215022030413 is a deficient number, since it is larger than the sum of its proper divisors (9348783955).

215022030413 is an equidigital number, since it uses as much as digits as its factorization.

215022030413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348783954.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 215022030413 its reverse (314030220512), we get a palindrome (529052250925).

The spelling of 215022030413 in words is "two hundred fifteen billion, twenty-two million, thirty thousand, four hundred thirteen".

Divisors: 1 23 9348783931 215022030413