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1310000030 = 251916342299
BaseRepresentation
bin100111000010101…
…0000001110011110
310101021222220012122
41032011100032132
510140330000110
6333553502542
744314550033
oct11605201636
93337886178
101310000030
11612508459
12306871a52
1317b529861
14c5da538a
157a018255
hex4e15039e

1310000030 has 32 divisors (see below), whose sum is σ = 2497392000. Its totient is φ = 493363872.

The previous prime is 1310000017. The next prime is 1310000051. The reversal of 1310000030 is 300000131.

It is a super-2 number, since 2×13100000302 = 3432200157200001800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1309999972 and 1310000017.

It is a congruent number.

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, 9821 + ... + 52119.

It is an arithmetic number, because the mean of its divisors is an integer number (78043500).

Almost surely, 21310000030 is an apocalyptic number.

1310000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310000030 is a deficient number, since it is larger than the sum of its proper divisors (1187391970).

1310000030 is a wasteful number, since it uses less digits than its factorization.

1310000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42488.

The product of its (nonzero) digits is 9, while the sum is 8.

The square root of 1310000030 is about 36193.9225561419. The cubic root of 1310000030 is about 1094.1841897161.

Adding to 1310000030 its reverse (300000131), we get a palindrome (1610000161).

The spelling of 1310000030 in words is "one billion, three hundred ten million, thirty", and thus it is an aban number.

Divisors: 1 2 5 10 19 38 95 163 190 326 815 1630 3097 6194 15485 30970 42299 84598 211495 422990 803681 1607362 4018405 6894737 8036810 13789474 34473685 68947370 131000003 262000006 655000015 1310000030