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310221210020130 = 236542554349797
BaseRepresentation
bin100011010001001010000000…
…1000001100110100100100010
31111200101212011111212012000000
41012202110001001212210202
5311130131014231121010
63015441353443440430
7122225512531235643
oct10642240101464442
91450355144765000
10310221210020130
118a9340926737a2
122a962b47686116
1310413971b49376
145686b029096ca
1525ce873d0b7c0
hex11a2501066922

310221210020130 has 56 divisors (see below), whose sum is σ = 837214277925852. Its totient is φ = 82725656003424.

The previous prime is 310221210020003. The next prime is 310221210020143. The reversal of 310221210020130 is 31020012122013.

310221210020130 is a `hidden beast` number, since 3 + 1 + 0 + 221 + 210 + 0 + 201 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 291837464729001 + 18383745291129 = 17083251^2 + 4287627^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 21277167609 + ... + 21277182188.

Almost surely, 2310221210020130 is an apocalyptic number.

310221210020130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

310221210020130 is an abundant number, since it is smaller than the sum of its proper divisors (526993067905722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

310221210020130 is an equidigital number, since it uses as much as digits as its factorization.

310221210020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42554349822 (or 42554349807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 310221210020130 its reverse (31020012122013), we get a palindrome (341241222142143).

The spelling of 310221210020130 in words is "three hundred ten trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 729 810 1215 1458 2430 3645 7290 42554349797 85108699594 127663049391 212771748985 255326098782 382989148173 425543497970 638315246955 765978296346 1148967444519 1276630493910 1914945740865 2297934889038 3446902333557 3829891481730 5744837222595 6893804667114 10340707000671 11489674445190 17234511667785 20681414001342 31022121002013 34469023335570 51703535003355 62044242004026 103407070006710 155110605010065 310221210020130