Search a number
-
+
310221210020131 = 3113677320509003
BaseRepresentation
bin100011010001001010000000…
…1000001100110100100100011
31111200101212011111212012000001
41012202110001001212210203
5311130131014231121011
63015441353443440431
7122225512531235644
oct10642240101464443
91450355144765001
10310221210020131
118a9340926737a3
122a962b47686117
1310413971b49377
145686b029096cb
1525ce873d0b7c1
hex11a2501066923

310221210020131 has 8 divisors (see below), whose sum is σ = 320462602159104. Its totient is φ = 299994458901960.

The previous prime is 310221210020003. The next prime is 310221210020143. The reversal of 310221210020131 is 131020012122013.

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

It is a cyclic number.

It is not a de Polignac number, because 310221210020131 - 27 = 310221210020003 is a prime.

It is a super-2 number, since 2×3102212100201312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310221210020099 and 310221210020108.

It is not an unprimeable number, because it can be changed into a prime (310221210020231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660212125 + ... + 3660296878.

It is an arithmetic number, because the mean of its divisors is an integer number (40057825269888).

Almost surely, 2310221210020131 is an apocalyptic number.

310221210020131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

310221210020131 is a deficient number, since it is larger than the sum of its proper divisors (10241392138973).

310221210020131 is a wasteful number, since it uses less digits than its factorization.

310221210020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320510401.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 310221210020131 its reverse (131020012122013), we get a palindrome (441241222142144).

The spelling of 310221210020131 in words is "three hundred ten trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, one hundred thirty-one".

Divisors: 1 31 1367 42377 7320509003 226935779093 10007135807101 310221210020131