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231341142020 = 22519738339623
BaseRepresentation
bin1101011101110100000…
…0011011000000000100
3211010010120011122212012
43113131000123000010
512242241313021040
6254135431313352
722466564155622
oct3273500330004
9733116148765
10231341142020
118a12505306a
1238a0381b858
1318a7a4c5821
14b2a86ba512
15603ebb8865
hex35dd01b004

231341142020 has 48 divisors (see below), whose sum is σ = 518391027840. Its totient is φ = 86465200896.

The previous prime is 231341142017. The next prime is 231341142049. The reversal of 231341142020 is 20241143132.

It is a super-2 number, since 2×2313411420202 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4142072 + ... + 4197551.

It is an arithmetic number, because the mean of its divisors is an integer number (10799813080).

Almost surely, 2231341142020 is an apocalyptic number.

231341142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231341142020 is an abundant number, since it is smaller than the sum of its proper divisors (287049885820).

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

231341142020 is a wasteful number, since it uses less digits than its factorization.

231341142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339724 (or 8339722 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 231341142020 its reverse (20241143132), we get a palindrome (251582285152).

The spelling of 231341142020 in words is "two hundred thirty-one billion, three hundred forty-one million, one hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 73 76 95 146 190 292 365 380 730 1387 1460 2774 5548 6935 13870 27740 8339623 16679246 33358492 41698115 83396230 158452837 166792460 316905674 608792479 633811348 792264185 1217584958 1584528370 2435169916 3043962395 3169056740 6087924790 11567057101 12175849580 23134114202 46268228404 57835285505 115670571010 231341142020