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310120130221 = 1147619833533
BaseRepresentation
bin1001000001101001001…
…10011010011010101101
31002122110210201220112221
410200310212122122231
520040111223131341
6354244530355341
731256031420226
oct4406446323255
91078423656487
10310120130221
1110a580801990
125012a72bb51
132332368a345
141101d21624d
158100d9aed1
hex483499a6ad

310120130221 has 16 divisors (see below), whose sum is σ = 351175166208. Its totient is φ = 271405483200.

The previous prime is 310120130207. The next prime is 310120130227. The reversal of 310120130221 is 122031021013.

It is a cyclic number.

It is not a de Polignac number, because 310120130221 - 217 = 310119999149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310120130195 and 310120130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310120130227) 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, 4885230 + ... + 4948303.

It is an arithmetic number, because the mean of its divisors is an integer number (21948447888).

Almost surely, 2310120130221 is an apocalyptic number.

It is an amenable number.

310120130221 is a deficient number, since it is larger than the sum of its proper divisors (41055035987).

310120130221 is a wasteful number, since it uses less digits than its factorization.

310120130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833652.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 310120130221 its reverse (122031021013), we get a palindrome (432151151234).

The spelling of 310120130221 in words is "three hundred ten billion, one hundred twenty million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 11 47 61 517 671 2867 31537 9833533 108168863 462176051 599845513 5083936561 6598300643 28192739111 310120130221