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3010000000021 = 72294344148761
BaseRepresentation
bin101011110011010001111…
…110110001010000010101
3101122202100002000220121021
4223303101332301100111
5343303440000000041
610222435214121141
7430315414566100
oct53632176612025
911582302026537
103010000000021
11a60596590803
12407436ab01b1
1318aac351a391
14a5983059737
155346c601cd1
hex2bcd1fb1415

3010000000021 has 24 divisors (see below), whose sum is σ = 3622325154840. Its totient is φ = 2490926054400.

The previous prime is 3009999999943. The next prime is 3010000000069. The reversal of 3010000000021 is 1200000000103.

It can be written as a sum of positive squares in 4 ways, for example, as 1031788692900 + 1978211307121 = 1015770^2 + 1406489^2 .

It is not a de Polignac number, because 3010000000021 - 215 = 3009999967253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 3009999999941 and 3010000000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3010000900021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61705281 + ... + 61754041.

It is an arithmetic number, because the mean of its divisors is an integer number (150930214785).

Almost surely, 23010000000021 is an apocalyptic number.

It is an amenable number.

3010000000021 is a deficient number, since it is larger than the sum of its proper divisors (612325154819).

3010000000021 is a wasteful number, since it uses less digits than its factorization.

3010000000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92245 (or 92238 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 3010000000021 its reverse (1200000000103), we get a palindrome (4210000000124).

The spelling of 3010000000021 in words is "three trillion, ten billion, twenty-one", and thus it is an aban number and an uban number.

Divisors: 1 7 29 49 203 1421 43441 48761 304087 341327 1259789 1414069 2128609 2389289 8818523 9898483 61729661 69289381 2118226601 14827586207 61428571429 103793103449 430000000003 3010000000021