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1312113030 = 235131333871
BaseRepresentation
bin100111000110101…
…0100000110000110
310101102222020200220
41032031110012012
510141400104110
6334111045210
744341530264
oct11615240606
93342866626
101312113030
11613720a38
12307510806
1317bab9557
14c6395434
157a2d4370
hex4e354186

1312113030 has 32 divisors (see below), whose sum is σ = 3173119488. Its totient is φ = 347224800.

The previous prime is 1312113029. The next prime is 1312113031. The reversal of 1312113030 is 303112131.

It is an interprime number because it is at equal distance from previous prime (1312113029) and next prime (1312113031).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312113031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163006 + ... + 170865.

It is an arithmetic number, because the mean of its divisors is an integer number (99159984).

Almost surely, 21312113030 is an apocalyptic number.

1312113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312113030 is an abundant number, since it is smaller than the sum of its proper divisors (1861006458).

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

1312113030 is a wasteful number, since it uses less digits than its factorization.

1312113030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334012.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1312113030 is about 36223.1007783707. The cubic root of 1312113030 is about 1094.7721716955.

Adding to 1312113030 its reverse (303112131), we get a palindrome (1615225161).

The spelling of 1312113030 in words is "one billion, three hundred twelve million, one hundred thirteen thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 333871 667742 1001613 1669355 2003226 3338710 5008065 10016130 43737101 87474202 131211303 218685505 262422606 437371010 656056515 1312113030