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250312013010021 = 31722330321979457
BaseRepresentation
bin111000111010100001001110…
…100111100101010001100101
31012211021121001120022111012110
4320322201032213211101211
5230302103000312310041
62244211430140311233
7103503306012622164
oct7072411647452145
91184247046274173
10250312013010021
11728368017a5996
12240a818a842519
13a98942457bbc1
1445b52479b73db
151de12cad4d516
hexe3a84e9e5465

250312013010021 has 16 divisors (see below), whose sum is σ = 353383264024704. Its totient is φ = 157057807478784.

The previous prime is 250312013010011. The next prime is 250312013010113. The reversal of 250312013010021 is 120010310213052.

250312013010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250312013010021 - 218 = 250312012747877 is a prime.

It is a super-2 number, since 2×2503120130100212 (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250312013010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250312013010011) 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, 398725 + ... + 22378181.

It is an arithmetic number, because the mean of its divisors is an integer number (22086454001544).

Almost surely, 2250312013010021 is an apocalyptic number.

It is an amenable number.

250312013010021 is a deficient number, since it is larger than the sum of its proper divisors (103071251014683).

250312013010021 is a wasteful number, since it uses less digits than its factorization.

250312013010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22202780.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 250312013010021 its reverse (120010310213052), we get a palindrome (370322323223073).

The spelling of 250312013010021 in words is "two hundred fifty trillion, three hundred twelve billion, thirteen million, ten thousand, twenty-one".

Divisors: 1 3 17 51 223303 669909 3796151 11388453 21979457 65938371 373650769 1120952307 4908078686471 14724236059413 83437337670007 250312013010021