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3031023013020 = 2232516839016739
BaseRepresentation
bin101100000110110111000…
…011001100110010011100
3101201202121012112121212100
4230012313003030302130
5344130013342404040
610240233250205100
7431661401342142
oct54066703146234
911652535477770
103031023013020
11a694a4521612
1240b523583790
1318ca93b2bb42
14a69b915d592
1553c9d097b30
hex2c1b70ccc9c

3031023013020 has 36 divisors (see below), whose sum is σ = 9194103140040. Its totient is φ = 808272803424.

The previous prime is 3031023012977. The next prime is 3031023013129. The reversal of 3031023013020 is 203103201303.

3031023013020 is a `hidden beast` number, since 3 + 0 + 310 + 2 + 301 + 30 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 3031023012984 and 3031023013002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8419508190 + ... + 8419508549.

It is an arithmetic number, because the mean of its divisors is an integer number (255391753890).

Almost surely, 23031023013020 is an apocalyptic number.

3031023013020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3031023013020 is an abundant number, since it is smaller than the sum of its proper divisors (6163080127020).

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

3031023013020 is a wasteful number, since it uses less digits than its factorization.

3031023013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16839016754 (or 16839016749 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 3031023013020 its reverse (203103201303), we get a palindrome (3234126214323).

The spelling of 3031023013020 in words is "three trillion, thirty-one billion, twenty-three million, thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 16839016739 33678033478 50517050217 67356066956 84195083695 101034100434 151551150651 168390167390 202068200868 252585251085 303102301302 336780334780 505170502170 606204602604 757755753255 1010341004340 1515511506510 3031023013020